311973979622 has 64 divisors (see below), whose sum is σ = 539209820160. Its totient is φ = 134393126400.

The previous prime is 311973979613. The next prime is 311973979637. The reversal of 311973979622 is 226979379113.

It is a super-2 number, since 2×311973979622² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 13546097 + ... + 13569107.

It is an arithmetic number, because the mean of its divisors is an integer number (8425153440).

Almost surely, 2^311973979622 is an apocalyptic number.

311973979622 is a deficient number, since it is larger than the sum of its proper divisors (227235840538).

311973979622 is a wasteful number, since it uses less digits than its factorization.

311973979622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23757.

The product of its digits is 7715736, while the sum is 59.

The spelling of 311973979622 in words is "three hundred eleven billion, nine hundred seventy-three million, nine hundred seventy-nine thousand, six hundred twenty-two".