197049891749760 has 3840 divisors, whose sum is σ = 880550934681600. Its totient is φ = 42012376842240.

The previous prime is 197049891749747. The next prime is 197049891749797. The reversal of 197049891749760 is 67947198940791.

197049891749760 is a `hidden beast` number, since 1 + 9 + 7 + 0 + 49 + 89 + 1 + 7 + 497 + 6 + 0 = 666.

197049891749760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×197049891749760² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 197049891749760.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 335689764187 + ... + 335689764773.

It is an arithmetic number, because the mean of its divisors is an integer number (229310139240).

Almost surely, 2^{197049891749760} is an apocalyptic number.

197049891749760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197049891749760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440275467340800).

197049891749760 is an abundant number, since it is smaller than the sum of its proper divisors (683501042931840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197049891749760 is an frugal number, since it uses more digits than its factorization.

197049891749760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 1728324864, while the sum is 81.

The spelling of 197049891749760 in words is "one hundred ninety-seven trillion, forty-nine billion, eight hundred ninety-one million, seven hundred forty-nine thousand, seven hundred sixty".