311009409894 has 16 divisors (see below), whose sum is σ = 622045363968. Its totient is φ = 103665379272.

The previous prime is 311009409877. The next prime is 311009409917. The reversal of 311009409894 is 498904900113.

It is a super-2 number, since 2×311009409894² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 952042 + ... + 1236285.

It is an arithmetic number, because the mean of its divisors is an integer number (38877835248).

Almost surely, 2^311009409894 is an apocalyptic number.

311009409894 is an abundant number, since it is smaller than the sum of its proper divisors (311035954074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311009409894 is a wasteful number, since it uses less digits than its factorization.

311009409894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212019.

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 311009409894 in words is "three hundred eleven billion, nine million, four hundred nine thousand, eight hundred ninety-four".