394768669774 has 8 divisors (see below), whose sum is σ = 592637189040. Its totient is φ = 197222940096.

The previous prime is 394768669703. The next prime is 394768669783. The reversal of 394768669774 is 477966867493.

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

It is a super-2 number, since 2×394768669774² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 394768669774.

It is a congruent number.

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, 80694339 + ... + 80699230.

It is an arithmetic number, because the mean of its divisors is an integer number (74079648630).

Almost surely, 2^394768669774 is an apocalyptic number.

394768669774 is a deficient number, since it is larger than the sum of its proper divisors (197868519266).

394768669774 is a wasteful number, since it uses less digits than its factorization.

394768669774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161394794.

The product of its digits is 2304433152, while the sum is 76.

The spelling of 394768669774 in words is "three hundred ninety-four billion, seven hundred sixty-eight million, six hundred sixty-nine thousand, seven hundred seventy-four".