391023442227 has 8 divisors (see below), whose sum is σ = 568761370560. Its totient is φ = 236983904360.

The previous prime is 391023442181. The next prime is 391023442231. The reversal of 391023442227 is 722244320193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 391023442227 - 2⁶ = 391023442163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (391023442297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5924597577 + ... + 5924597642.

It is an arithmetic number, because the mean of its divisors is an integer number (71095171320).

Almost surely, 2^391023442227 is an apocalyptic number.

391023442227 is a deficient number, since it is larger than the sum of its proper divisors (177737928333).

391023442227 is a wasteful number, since it uses less digits than its factorization.

391023442227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11849195233.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 391023442227 in words is "three hundred ninety-one billion, twenty-three million, four hundred forty-two thousand, two hundred twenty-seven".