97985791051 has 16 divisors (see below), whose sum is σ = 101952224640. Its totient is φ = 94089790080.

The previous prime is 97985790997. The next prime is 97985791069. The reversal of 97985791051 is 15019758979.

It is a cyclic number.

It is not a de Polignac number, because 97985791051 - 2⁷ = 97985790923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97985791951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8356845 + ... + 8368561.

It is an arithmetic number, because the mean of its divisors is an integer number (6372014040).

Almost surely, 2^97985791051 is an apocalyptic number.

97985791051 is a deficient number, since it is larger than the sum of its proper divisors (3966433589).

97985791051 is a wasteful number, since it uses less digits than its factorization.

97985791051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14694.

The product of its (nonzero) digits is 7144200, while the sum is 61.

The spelling of 97985791051 in words is "ninety-seven billion, nine hundred eighty-five million, seven hundred ninety-one thousand, fifty-one".