97839700464 has 80 divisors (see below), whose sum is σ = 276153289344. Its totient is φ = 29602886400.

The previous prime is 97839700457. The next prime is 97839700487. The reversal of 97839700464 is 46400793879.

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, 202899 + ... + 486669.

Almost surely, 2^97839700464 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 97839700464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138076644672).

97839700464 is an abundant number, since it is smaller than the sum of its proper divisors (178313588880).

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

97839700464 is a wasteful number, since it uses less digits than its factorization.

97839700464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284446 (or 284440 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 97839700464 in words is "ninety-seven billion, eight hundred thirty-nine million, seven hundred thousand, four hundred sixty-four".