381718075356 has 36 divisors (see below), whose sum is σ = 971840196600. Its totient is φ = 126323965728.

The previous prime is 381718075253. The next prime is 381718075379. The reversal of 381718075356 is 653570817183.

381718075356 is a `hidden beast` number, since 3 + 81 + 71 + 80 + 75 + 356 = 666.

381718075356 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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, 38136291 + ... + 38146298.

Almost surely, 2^381718075356 is an apocalyptic number.

381718075356 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

381718075356 is an abundant number, since it is smaller than the sum of its proper divisors (590122121244).

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

381718075356 is a wasteful number, since it uses less digits than its factorization.

381718075356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76282738 (or 76282733 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 381718075356 in words is "three hundred eighty-one billion, seven hundred eighteen million, seventy-five thousand, three hundred fifty-six".