189305810472 has 64 divisors (see below), whose sum is σ = 502816060800. Its totient is φ = 59279351040.

The previous prime is 189305810461. The next prime is 189305810479. The reversal of 189305810472 is 274018503981.

It is not an unprimeable number, because it can be changed into a prime (189305810479) 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, 3649804 + ... + 3701307.

It is an arithmetic number, because the mean of its divisors is an integer number (7856500950).

Almost surely, 2^189305810472 is an apocalyptic number.

189305810472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189305810472 is an abundant number, since it is smaller than the sum of its proper divisors (313510250328).

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

189305810472 is a wasteful number, since it uses less digits than its factorization.

189305810472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7351186 (or 7351182 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 189305810472 in words is "one hundred eighty-nine billion, three hundred five million, eight hundred ten thousand, four hundred seventy-two".