97264558644 has 48 divisors (see below), whose sum is σ = 247604152320. Its totient is φ = 29471532640.

The previous prime is 97264558627. The next prime is 97264558649. The reversal of 97264558644 is 44685546279.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97264558649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1939267 + ... + 1988789.

It is an arithmetic number, because the mean of its divisors is an integer number (5158419840).

Almost surely, 2^97264558644 is an apocalyptic number.

It is an amenable number.

97264558644 is an abundant number, since it is smaller than the sum of its proper divisors (150339593676).

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

97264558644 is a wasteful number, since it uses less digits than its factorization.

97264558644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64420 (or 64418 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 60.

The spelling of 97264558644 in words is "ninety-seven billion, two hundred sixty-four million, five hundred fifty-eight thousand, six hundred forty-four".