189038140964 has 24 divisors (see below), whose sum is σ = 334837079808. Its totient is φ = 93376876320.

The previous prime is 189038140913. The next prime is 189038140987. The reversal of 189038140964 is 469041830981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692027 + ... + 925730.

It is an arithmetic number, because the mean of its divisors is an integer number (13951544992).

Almost surely, 2^189038140964 is an apocalyptic number.

It is an amenable number.

189038140964 is a deficient number, since it is larger than the sum of its proper divisors (145798938844).

189038140964 is a wasteful number, since it uses less digits than its factorization.

189038140964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618115 (or 1618113 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 189038140964 in words is "one hundred eighty-nine billion, thirty-eight million, one hundred forty thousand, nine hundred sixty-four".