97631099480 has 64 divisors (see below), whose sum is σ = 231378336000. Its totient is φ = 36973563264.

The previous prime is 97631099479. The next prime is 97631099507. The reversal of 97631099480 is 8499013679.

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, 1181351 + ... + 1261289.

It is an arithmetic number, because the mean of its divisors is an integer number (3615286500).

Almost surely, 2^97631099480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97631099480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115689168000).

97631099480 is an abundant number, since it is smaller than the sum of its proper divisors (133747236520).

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

97631099480 is a wasteful number, since it uses less digits than its factorization.

97631099480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81576 (or 81572 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 97631099480 in words is "ninety-seven billion, six hundred thirty-one million, ninety-nine thousand, four hundred eighty".