311853909986 has 16 divisors (see below), whose sum is σ = 469310931936. Its totient is φ = 155417282016.

The previous prime is 311853909979. The next prime is 311853910001. The reversal of 311853909986 is 689909358113.

It is a super-2 number, since 2×311853909986² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730345 + ... + 1902051.

It is an arithmetic number, because the mean of its divisors is an integer number (29331933246).

Almost surely, 2^311853909986 is an apocalyptic number.

311853909986 is a deficient number, since it is larger than the sum of its proper divisors (157457021950).

311853909986 is a wasteful number, since it uses less digits than its factorization.

311853909986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174673.

The product of its (nonzero) digits is 12597120, while the sum is 62.

The spelling of 311853909986 in words is "three hundred eleven billion, eight hundred fifty-three million, nine hundred nine thousand, nine hundred eighty-six".