187383172100381 has 64 divisors (see below), whose sum is σ = 208260519247872. Its totient is φ = 167999261760000.

The previous prime is 187383172100353. The next prime is 187383172100441. The reversal of 187383172100381 is 183001271383781.

187383172100381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 187383172100381 - 2¹⁸ = 187383171838237 is a prime.

It is a super-2 number, since 2×187383172100381² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187383172100351) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3105888386 + ... + 3105948716.

It is an arithmetic number, because the mean of its divisors is an integer number (3254070613248).

Almost surely, 2^{187383172100381} is an apocalyptic number.

It is an amenable number.

187383172100381 is a deficient number, since it is larger than the sum of its proper divisors (20877347147491).

187383172100381 is a wasteful number, since it uses less digits than its factorization.

187383172100381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61194.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 187383172100381 in words is "one hundred eighty-seven trillion, three hundred eighty-three billion, one hundred seventy-two million, one hundred thousand, three hundred eighty-one".