191943519072 has 48 divisors (see below), whose sum is σ = 503887592880. Its totient is φ = 63976620032.

The previous prime is 191943519059. The next prime is 191943519133. The reversal of 191943519072 is 270915349191.

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

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 1454428 + ... + 1580900.

It is an arithmetic number, because the mean of its divisors is an integer number (10497658185).

Almost surely, 2^191943519072 is an apocalyptic number.

191943519072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191943519072 is an abundant number, since it is smaller than the sum of its proper divisors (311944073808).

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

191943519072 is a wasteful number, since it uses less digits than its factorization.

191943519072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142295 (or 142287 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 51.

The spelling of 191943519072 in words is "one hundred ninety-one billion, nine hundred forty-three million, five hundred nineteen thousand, seventy-two".