97974817968 has 30 divisors (see below), whose sum is σ = 253107215404. Its totient is φ = 32657549792.

The previous prime is 97974817933. The next prime is 97974817981. The reversal of 97974817968 is 86971847979.

It is a self number, because there is not a number n which added to its sum of digits gives 97974817968.

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, 2146003 + ... + 2191181.

Almost surely, 2^97974817968 is an apocalyptic number.

It is an amenable number.

97974817968 is an abundant number, since it is smaller than the sum of its proper divisors (155132397436).

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

97974817968 is an frugal number, since it uses more digits than its factorization.

97974817968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90369 (or 45184 counting only the distinct ones).

The product of its digits is 384072192, while the sum is 75.

Multiplying 97974817968 by its sum of digits (75), we get a square (7348111347600 = 2710740²).

The spelling of 97974817968 in words is "ninety-seven billion, nine hundred seventy-four million, eight hundred seventeen thousand, nine hundred sixty-eight".