191234575672 has 32 divisors (see below), whose sum is σ = 412538652000. Its totient is φ = 81407620224.

The previous prime is 191234575669. The next prime is 191234575691. The reversal of 191234575672 is 276575432191.

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, 11451063 + ... + 11467750.

It is an arithmetic number, because the mean of its divisors is an integer number (12891832875).

Almost surely, 2^191234575672 is an apocalyptic number.

It is an amenable number.

191234575672 is an abundant number, since it is smaller than the sum of its proper divisors (221304076328).

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

191234575672 is a wasteful number, since it uses less digits than its factorization.

191234575672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22918975 (or 22918971 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 52.

The spelling of 191234575672 in words is "one hundred ninety-one billion, two hundred thirty-four million, five hundred seventy-five thousand, six hundred seventy-two".