311764085522 has 6 divisors (see below), whose sum is σ = 467647312743. Its totient is φ = 155881647942.

The previous prime is 311764085519. The next prime is 311764085527. The reversal of 311764085522 is 225580467113.

It can be written as a sum of positive squares in only one way, i.e., 155882042761 + 155882042761 = 394819^2 + 394819^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=394819.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311764085527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 592229 + ... + 987047.

Almost surely, 2^311764085522 is an apocalyptic number.

311764085522 is a deficient number, since it is larger than the sum of its proper divisors (155883227221).

311764085522 is an frugal number, since it uses more digits than its factorization.

311764085522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789640 (or 394821 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 311764085522 in words is "three hundred eleven billion, seven hundred sixty-four million, eighty-five thousand, five hundred twenty-two".