189112479664 has 40 divisors (see below), whose sum is σ = 378850158288. Its totient is φ = 91387806720.

The previous prime is 189112479643. The next prime is 189112479679. The reversal of 189112479664 is 466974211981.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 189112479599 and 189112479608.

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, 1276917 + ... + 1417300.

Almost surely, 2^189112479664 is an apocalyptic number.

It is an amenable number.

189112479664 is an abundant number, since it is smaller than the sum of its proper divisors (189737678624).

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

189112479664 is a wasteful number, since it uses less digits than its factorization.

189112479664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694373 (or 2694367 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The spelling of 189112479664 in words is "one hundred eighty-nine billion, one hundred twelve million, four hundred seventy-nine thousand, six hundred sixty-four".