308794438666 has 16 divisors (see below), whose sum is σ = 536817697920. Its totient is φ = 130476522960.

The previous prime is 308794438649. The next prime is 308794438679. The reversal of 308794438666 is 666834497803.

It is a junction number, because it is equal to n+sod(n) for n = 308794438598 and 308794438607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155328201 + ... + 155330188.

It is an arithmetic number, because the mean of its divisors is an integer number (33551106120).

Almost surely, 2^308794438666 is an apocalyptic number.

308794438666 is a deficient number, since it is larger than the sum of its proper divisors (228023259254).

308794438666 is a wasteful number, since it uses less digits than its factorization.

308794438666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310658469.

The product of its (nonzero) digits is 125411328, while the sum is 64.

The spelling of 308794438666 in words is "three hundred eight billion, seven hundred ninety-four million, four hundred thirty-eight thousand, six hundred sixty-six".