97997525794 has 12 divisors (see below), whose sum is σ = 170995682934. Its totient is φ = 41998939584.

The previous prime is 97997525753. The next prime is 97997525807. The reversal of 97997525794 is 49752579979.

It can be written as a sum of positive squares in only one way, i.e., 76200842025 + 21796683769 = 276045^2 + 147637^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 499987279 + ... + 499987474.

Almost surely, 2^97997525794 is an apocalyptic number.

97997525794 is a deficient number, since it is larger than the sum of its proper divisors (72998157140).

97997525794 is a wasteful number, since it uses less digits than its factorization.

97997525794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999974769 (or 999974762 counting only the distinct ones).

The product of its digits is 450084600, while the sum is 73.

The spelling of 97997525794 in words is "ninety-seven billion, nine hundred ninety-seven million, five hundred twenty-five thousand, seven hundred ninety-four".