82638903212 has 12 divisors (see below), whose sum is σ = 144621403416. Its totient is φ = 41318502240.

The previous prime is 82638903187. The next prime is 82638903223. The reversal of 82638903212 is 21230983628.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 19214 + ... + 406997.

It is an arithmetic number, because the mean of its divisors is an integer number (12051783618).

Almost surely, 2^82638903212 is an apocalyptic number.

It is an amenable number.

82638903212 is a deficient number, since it is larger than the sum of its proper divisors (61982500204).

82638903212 is a wasteful number, since it uses less digits than its factorization.

82638903212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474688 (or 474686 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 82638903212 in words is "eighty-two billion, six hundred thirty-eight million, nine hundred three thousand, two hundred twelve".