197778849810480 has 480 divisors, whose sum is σ = 708797086583040. Its totient is φ = 49278932858880.

The previous prime is 197778849810457. The next prime is 197778849810517. The reversal of 197778849810480 is 84018948877791.

197778849810480 is a `hidden beast` number, since 1 + 9 + 7 + 7 + 7 + 88 + 49 + 8 + 10 + 480 = 666.

It is a super-3 number, since 3×197778849810480³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 197778849810480.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 666354910 + ... + 666651650.

It is an arithmetic number, because the mean of its divisors is an integer number (1476660597048).

Almost surely, 2^{197778849810480} is an apocalyptic number.

197778849810480 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 197778849810480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354398543291520).

197778849810480 is an abundant number, since it is smaller than the sum of its proper divisors (511018236772560).

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

197778849810480 is a wasteful number, since it uses less digits than its factorization.

197778849810480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297449 (or 297440 counting only the distinct ones).

The product of its (nonzero) digits is 1820786688, while the sum is 81.

The spelling of 197778849810480 in words is "one hundred ninety-seven trillion, seven hundred seventy-eight billion, eight hundred forty-nine million, eight hundred ten thousand, four hundred eighty".