638862016059 has 12 divisors (see below), whose sum is σ = 940212024336. Its totient is φ = 417872010192.

The previous prime is 638862016043. The next prime is 638862016069. The reversal of 638862016059 is 950610268836.

It is a happy number.

638862016059 is a `hidden beast` number, since 6 + 3 + 8 + 8 + 6 + 20 + 1 + 605 + 9 = 666.

It is not a de Polignac number, because 638862016059 - 2⁴ = 638862016043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 638862015996 and 638862016014.

It is not an unprimeable number, because it can be changed into a prime (638862016069) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 669666207 + ... + 669667160.

It is an arithmetic number, because the mean of its divisors is an integer number (78351002028).

Almost surely, 2^638862016059 is an apocalyptic number.

638862016059 is a deficient number, since it is larger than the sum of its proper divisors (301350008277).

638862016059 is a wasteful number, since it uses less digits than its factorization.

638862016059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339333426 (or 1339333423 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 638862016059 in words is "six hundred thirty-eight billion, eight hundred sixty-two million, sixteen thousand, fifty-nine".