82560961688 has 16 divisors (see below), whose sum is σ = 154824895680. Its totient is φ = 41274322848.

The previous prime is 82560961663. The next prime is 82560961727. The reversal of 82560961688 is 88616906528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712520 + ... + 820247.

It is an arithmetic number, because the mean of its divisors is an integer number (9676555980).

Almost surely, 2^82560961688 is an apocalyptic number.

It is an amenable number.

82560961688 is a deficient number, since it is larger than the sum of its proper divisors (72263933992).

82560961688 is a wasteful number, since it uses less digits than its factorization.

82560961688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539506 (or 1539502 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 59.

The spelling of 82560961688 in words is "eighty-two billion, five hundred sixty million, nine hundred sixty-one thousand, six hundred eighty-eight".