387908502913836 has 18 divisors (see below), whose sum is σ = 980546493476732. Its totient is φ = 129302834304600.

The previous prime is 387908502913831. The next prime is 387908502913847. The reversal of 387908502913836 is 638319205809783.

It is a happy number.

387908502913836 is a `hidden beast` number, since 3 + 8 + 79 + 0 + 8 + 502 + 9 + 13 + 8 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (387908502913831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5387618095990 + ... + 5387618096061.

Almost surely, 2^{387908502913836} is an apocalyptic number.

387908502913836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

387908502913836 is an abundant number, since it is smaller than the sum of its proper divisors (592637990562896).

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

387908502913836 is a wasteful number, since it uses less digits than its factorization.

387908502913836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10775236192061 (or 10775236192056 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 387908502913836 in words is "three hundred eighty-seven trillion, nine hundred eight billion, five hundred two million, nine hundred thirteen thousand, eight hundred thirty-six".