311949633986 has 16 divisors (see below), whose sum is σ = 475615326528. Its totient is φ = 153411406800.

The previous prime is 311949633967. The next prime is 311949634027. The reversal of 311949633986 is 689336949113.

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, 4306181 + ... + 4378023.

It is an arithmetic number, because the mean of its divisors is an integer number (29725957908).

Almost surely, 2^311949633986 is an apocalyptic number.

311949633986 is a deficient number, since it is larger than the sum of its proper divisors (163665692542).

311949633986 is a wasteful number, since it uses less digits than its factorization.

311949633986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107497.

The product of its digits is 22674816, while the sum is 62.

The spelling of 311949633986 in words is "three hundred eleven billion, nine hundred forty-nine million, six hundred thirty-three thousand, nine hundred eighty-six".