97945272636 has 48 divisors (see below), whose sum is σ = 233314712064. Its totient is φ = 31968629056.

The previous prime is 97945272617. The next prime is 97945272673. The reversal of 97945272636 is 63627254979.

It is a self number, because there is not a number n which added to its sum of digits gives 97945272636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166825 + ... + 472991.

It is an arithmetic number, because the mean of its divisors is an integer number (4860723168).

Almost surely, 2^97945272636 is an apocalyptic number.

It is an amenable number.

97945272636 is an abundant number, since it is smaller than the sum of its proper divisors (135369439428).

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

97945272636 is a wasteful number, since it uses less digits than its factorization.

97945272636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306730 (or 306728 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 60.

The spelling of 97945272636 in words is "ninety-seven billion, nine hundred forty-five million, two hundred seventy-two thousand, six hundred thirty-six".