197444279970 has 256 divisors, whose sum is σ = 637646929920. Its totient is φ = 42441034752.

The previous prime is 197444279959. The next prime is 197444279993. The reversal of 197444279970 is 79972444791.

197444279970 is a `hidden beast` number, since 19 + 7 + 44 + 427 + 99 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 197444279898 and 197444279907.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 73479967 + ... + 73482653.

It is an arithmetic number, because the mean of its divisors is an integer number (2490808320).

Almost surely, 2^197444279970 is an apocalyptic number.

197444279970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 197444279970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318823464960).

197444279970 is an abundant number, since it is smaller than the sum of its proper divisors (440202649950).

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

197444279970 is a wasteful number, since it uses less digits than its factorization.

197444279970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014 (or 5008 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 63.

The spelling of 197444279970 in words is "one hundred ninety-seven billion, four hundred forty-four million, two hundred seventy-nine thousand, nine hundred seventy".