31336844977 has 16 divisors (see below), whose sum is σ = 32838760960. Its totient is φ = 29866838400.

The previous prime is 31336844971. The next prime is 31336844999. The reversal of 31336844977 is 77944863313.

It is not a de Polignac number, because 31336844977 - 2¹⁵ = 31336812209 is a prime.

It is a super-2 number, since 2×31336844977² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31336844971) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1594702 + ... + 1614232.

It is an arithmetic number, because the mean of its divisors is an integer number (2052422560).

Almost surely, 2^31336844977 is an apocalyptic number.

It is an amenable number.

31336844977 is a deficient number, since it is larger than the sum of its proper divisors (1501915983).

31336844977 is a wasteful number, since it uses less digits than its factorization.

31336844977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20344.

The product of its digits is 9144576, while the sum is 55.

The spelling of 31336844977 in words is "thirty-one billion, three hundred thirty-six million, eight hundred forty-four thousand, nine hundred seventy-seven".