394613688911 has 4 divisors (see below), whose sum is σ = 424968588072. Its totient is φ = 364258789752.

The previous prime is 394613688881. The next prime is 394613688943. The reversal of 394613688911 is 119886316493.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 394613688911 - 2²² = 394609494607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394613688971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15177449561 + ... + 15177449586.

It is an arithmetic number, because the mean of its divisors is an integer number (106242147018).

Almost surely, 2^394613688911 is an apocalyptic number.

394613688911 is a deficient number, since it is larger than the sum of its proper divisors (30354899161).

394613688911 is a wasteful number, since it uses less digits than its factorization.

394613688911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30354899160.

The product of its digits is 6718464, while the sum is 59.

The spelling of 394613688911 in words is "three hundred ninety-four billion, six hundred thirteen million, six hundred eighty-eight thousand, nine hundred eleven".