97979182428 has 24 divisors (see below), whose sum is σ = 235992870400. Its totient is φ = 31606187760.

The previous prime is 97979182417. The next prime is 97979182429. The reversal of 97979182428 is 82428197979.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97979182429) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 131692078 + ... + 131692821.

Almost surely, 2^97979182428 is an apocalyptic number.

It is an amenable number.

97979182428 is an abundant number, since it is smaller than the sum of its proper divisors (138013687972).

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

97979182428 is a wasteful number, since it uses less digits than its factorization.

97979182428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263384937 (or 263384935 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 66.

The spelling of 97979182428 in words is "ninety-seven billion, nine hundred seventy-nine million, one hundred eighty-two thousand, four hundred twenty-eight".