189150631923 has 24 divisors (see below), whose sum is σ = 291802638400. Its totient is φ = 108603229680.

The previous prime is 189150631921. The next prime is 189150631949. The reversal of 189150631923 is 329136051981.

It is not a de Polignac number, because 189150631923 - 2¹ = 189150631921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189150631921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13705633 + ... + 13719426.

Almost surely, 2^189150631923 is an apocalyptic number.

189150631923 is a deficient number, since it is larger than the sum of its proper divisors (102652006477).

189150631923 is a wasteful number, since it uses less digits than its factorization.

189150631923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27425103 (or 27425092 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 189150631923 in words is "one hundred eighty-nine billion, one hundred fifty million, six hundred thirty-one thousand, nine hundred twenty-three".