189506562904 has 64 divisors (see below), whose sum is σ = 361250604000. Its totient is φ = 93190056960.

The previous prime is 189506562901. The next prime is 189506562919. The reversal of 189506562904 is 409265605981.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189506562901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55916442 + ... + 55919830.

Almost surely, 2^189506562904 is an apocalyptic number.

It is an amenable number.

189506562904 is a deficient number, since it is larger than the sum of its proper divisors (171744041096).

189506562904 is a wasteful number, since it uses less digits than its factorization.

189506562904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988 (or 3984 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 189506562904 in words is "one hundred eighty-nine billion, five hundred six million, five hundred sixty-two thousand, nine hundred four".