189317307723468 has 12 divisors (see below), whose sum is σ = 441740384688120. Its totient is φ = 63105769241152.

The previous prime is 189317307723457. The next prime is 189317307723541. The reversal of 189317307723468 is 864327703713981.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7888221155133 + ... + 7888221155156.

It is an arithmetic number, because the mean of its divisors is an integer number (36811698724010).

Almost surely, 2^{189317307723468} is an apocalyptic number.

It is an amenable number.

189317307723468 is an abundant number, since it is smaller than the sum of its proper divisors (252423076964652).

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

189317307723468 is a wasteful number, since it uses less digits than its factorization.

189317307723468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15776442310296 (or 15776442310294 counting only the distinct ones).

The product of its (nonzero) digits is 256048128, while the sum is 69.

The spelling of 189317307723468 in words is "one hundred eighty-nine trillion, three hundred seventeen billion, three hundred seven million, seven hundred twenty-three thousand, four hundred sixty-eight".