189734669472 has 48 divisors (see below), whose sum is σ = 507450756960. Its totient is φ = 62051588352.

The previous prime is 189734669447. The next prime is 189734669489. The reversal of 189734669472 is 274966437981.

It is a tau number, because it is divible by the number of its divisors (48).

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, 18640222 + ... + 18650397.

It is an arithmetic number, because the mean of its divisors is an integer number (10571890770).

Almost surely, 2^189734669472 is an apocalyptic number.

189734669472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189734669472 is an abundant number, since it is smaller than the sum of its proper divisors (317716087488).

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

189734669472 is a wasteful number, since it uses less digits than its factorization.

189734669472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37290685 (or 37290677 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 66.

The spelling of 189734669472 in words is "one hundred eighty-nine billion, seven hundred thirty-four million, six hundred sixty-nine thousand, four hundred seventy-two".