191827168956 has 72 divisors (see below), whose sum is σ = 506219313600. Its totient is φ = 61171044480.

The previous prime is 191827168937. The next prime is 191827169033. The reversal of 191827168956 is 659861728191.

It is a junction number, because it is equal to n+sod(n) for n = 191827168893 and 191827168902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 729060 + ... + 956651.

It is an arithmetic number, because the mean of its divisors is an integer number (7030823800).

Almost surely, 2^191827168956 is an apocalyptic number.

It is an amenable number.

191827168956 is an abundant number, since it is smaller than the sum of its proper divisors (314392144644).

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

191827168956 is a wasteful number, since it uses less digits than its factorization.

191827168956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685859 (or 1685854 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 63.

The spelling of 191827168956 in words is "one hundred ninety-one billion, eight hundred twenty-seven million, one hundred sixty-eight thousand, nine hundred fifty-six".