191300318192 has 80 divisors (see below), whose sum is σ = 386087907840. Its totient is φ = 91761901056.

The previous prime is 191300318189. The next prime is 191300318207. The reversal of 191300318192 is 291813003191.

It is a super-2 number, since 2×191300318192² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8937359 + ... + 8958737.

It is an arithmetic number, because the mean of its divisors is an integer number (4826098848).

Almost surely, 2^191300318192 is an apocalyptic number.

It is an amenable number.

191300318192 is an abundant number, since it is smaller than the sum of its proper divisors (194787589648).

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

191300318192 is a wasteful number, since it uses less digits than its factorization.

191300318192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21670 (or 21664 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 191300318192 in words is "one hundred ninety-one billion, three hundred million, three hundred eighteen thousand, one hundred ninety-two".