82668644292 has 24 divisors (see below), whose sum is σ = 207731465536. Its totient is φ = 25436505888.

The previous prime is 82668644287. The next prime is 82668644341. The reversal of 82668644292 is 29244686628.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264963448 + ... + 264963759.

Almost surely, 2^82668644292 is an apocalyptic number.

It is an amenable number.

82668644292 is an abundant number, since it is smaller than the sum of its proper divisors (125062821244).

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

82668644292 is a wasteful number, since it uses less digits than its factorization.

82668644292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529927227 (or 529927225 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 57.

The spelling of 82668644292 in words is "eighty-two billion, six hundred sixty-eight million, six hundred forty-four thousand, two hundred ninety-two".