189405875832 has 128 divisors (see below), whose sum is σ = 487276715520. Its totient is φ = 61330752000.

The previous prime is 189405875803. The next prime is 189405875881. The reversal of 189405875832 is 238578504981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59541282 + ... + 59544462.

It is an arithmetic number, because the mean of its divisors is an integer number (3806849340).

Almost surely, 2^189405875832 is an apocalyptic number.

189405875832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189405875832 is an abundant number, since it is smaller than the sum of its proper divisors (297870839688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189405875832 is a wasteful number, since it uses less digits than its factorization.

189405875832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765 (or 3761 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 189405875832 in words is "one hundred eighty-nine billion, four hundred five million, eight hundred seventy-five thousand, eight hundred thirty-two".