638005000982 has 64 divisors (see below), whose sum is σ = 1029650918400. Its totient is φ = 295606195200.

The previous prime is 638005000957. The next prime is 638005000991. The reversal of 638005000982 is 289000500836.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409239119 + ... + 409240677.

It is an arithmetic number, because the mean of its divisors is an integer number (16088295600).

Almost surely, 2^638005000982 is an apocalyptic number.

638005000982 is a deficient number, since it is larger than the sum of its proper divisors (391645917418).

638005000982 is a wasteful number, since it uses less digits than its factorization.

638005000982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 638005000982 in words is "six hundred thirty-eight billion, five million, nine hundred eighty-two", and thus it is an aban number.