638104283082 has 64 divisors (see below), whose sum is σ = 1621053066240. Its totient is φ = 182262549168.

The previous prime is 638104283021. The next prime is 638104283083. The reversal of 638104283082 is 280382401836.

638104283082 is a `hidden beast` number, since 638 + 1 + 0 + 4 + 2 + 8 + 3 + 0 + 8 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (638104283083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1067073 + ... + 1553979.

It is an arithmetic number, because the mean of its divisors is an integer number (25328954160).

Almost surely, 2^638104283082 is an apocalyptic number.

638104283082 is an abundant number, since it is smaller than the sum of its proper divisors (982948783158).

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

638104283082 is a wasteful number, since it uses less digits than its factorization.

638104283082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490392 (or 490386 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 638104283082 in words is "six hundred thirty-eight billion, one hundred four million, two hundred eighty-three thousand, eighty-two".