97766988925 has 6 divisors (see below), whose sum is σ = 121231066298. Its totient is φ = 78213591120.

The previous prime is 97766988883. The next prime is 97766988937. The reversal of 97766988925 is 52988966779.

It can be written as a sum of positive squares in 3 ways, for example, as 708571161 + 97058417764 = 26619^2 + 311542^2 .

It is not a de Polignac number, because 97766988925 - 2³³ = 89177054333 is a prime.

It is a super-2 number, since 2×97766988925² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1955339754 + ... + 1955339803.

Almost surely, 2^97766988925 is an apocalyptic number.

It is an amenable number.

97766988925 is a deficient number, since it is larger than the sum of its proper divisors (23464077373).

97766988925 is a wasteful number, since it uses less digits than its factorization.

97766988925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910679567 (or 3910679562 counting only the distinct ones).

The product of its digits is 823011840, while the sum is 76.

The spelling of 97766988925 in words is "ninety-seven billion, seven hundred sixty-six million, nine hundred eighty-eight thousand, nine hundred twenty-five".