381051915900 has 36 divisors (see below), whose sum is σ = 1102510210872. Its totient is φ = 101613844160.

The previous prime is 381051915821. The next prime is 381051915953. The reversal of 381051915900 is 9519150183.

It is a super-2 number, since 2×381051915900² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 635086227 + ... + 635086826.

Almost surely, 2^381051915900 is an apocalyptic number.

381051915900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381051915900 is an abundant number, since it is smaller than the sum of its proper divisors (721458294972).

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

381051915900 is a wasteful number, since it uses less digits than its factorization.

381051915900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270173070 (or 1270173063 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 42.

The spelling of 381051915900 in words is "three hundred eighty-one billion, fifty-one million, nine hundred fifteen thousand, nine hundred".