394153105992 has 32 divisors (see below), whose sum is σ = 994102973280. Its totient is φ = 130221674240.

The previous prime is 394153105981. The next prime is 394153106047. The reversal of 394153105992 is 299501351493.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72665634 + ... + 72671057.

It is an arithmetic number, because the mean of its divisors is an integer number (31065717915).

Almost surely, 2^394153105992 is an apocalyptic number.

It is an amenable number.

394153105992 is an abundant number, since it is smaller than the sum of its proper divisors (599949867288).

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

394153105992 is a wasteful number, since it uses less digits than its factorization.

394153105992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145336813 (or 145336809 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 51.

The spelling of 394153105992 in words is "three hundred ninety-four billion, one hundred fifty-three million, one hundred five thousand, nine hundred ninety-two".