97799155968 has 288 divisors, whose sum is σ = 279477918720. Its totient is φ = 30287093760.

The previous prime is 97799155933. The next prime is 97799155997. The reversal of 97799155968 is 86955199779.

It is a self number, because there is not a number n which added to its sum of digits gives 97799155968.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251411518 + ... + 251411906.

It is an arithmetic number, because the mean of its divisors is an integer number (970409440).

Almost surely, 2^97799155968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97799155968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139738959360).

97799155968 is an abundant number, since it is smaller than the sum of its proper divisors (181678762752).

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

97799155968 is a wasteful number, since it uses less digits than its factorization.

97799155968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 791 counting only the distinct ones).

The product of its digits is 385786800, while the sum is 75.

The spelling of 97799155968 in words is "ninety-seven billion, seven hundred ninety-nine million, one hundred fifty-five thousand, nine hundred sixty-eight".