189372547928 has 32 divisors (see below), whose sum is σ = 359279303760. Its totient is φ = 93569710080.

The previous prime is 189372547907. The next prime is 189372547957. The reversal of 189372547928 is 829745273981.

It is a congruent number.

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, 6158 + ... + 615453.

Almost surely, 2^189372547928 is an apocalyptic number.

It is an amenable number.

189372547928 is a deficient number, since it is larger than the sum of its proper divisors (169906755832).

189372547928 is a wasteful number, since it uses less digits than its factorization.

189372547928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622067 (or 622063 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 65.

The spelling of 189372547928 in words is "one hundred eighty-nine billion, three hundred seventy-two million, five hundred forty-seven thousand, nine hundred twenty-eight".