638714282417836 has 12 divisors (see below), whose sum is σ = 1136073764628880. Its totient is φ = 314121778238160.

The previous prime is 638714282417831. The next prime is 638714282417903.

638714282417836 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (70) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (638714282417831) 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 3 ways as a sum of consecutive naturals, for example, 1308840742416 + ... + 1308840742903.

Almost surely, 2^{638714282417836} is an apocalyptic number.

It is an amenable number.

638714282417836 is a deficient number, since it is larger than the sum of its proper divisors (497359482211044).

638714282417836 is a wasteful number, since it uses less digits than its factorization.

638714282417836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617681485384 (or 2617681485382 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 70.

The spelling of 638714282417836 in words is "six hundred thirty-eight trillion, seven hundred fourteen billion, two hundred eighty-two million, four hundred seventeen thousand, eight hundred thirty-six".