13490772831 has 40 divisors (see below), whose sum is σ = 20416734624. Its totient is φ = 8876692800.

The previous prime is 13490772817. The next prime is 13490772839. The reversal of 13490772831 is 13827709431.

13490772831 is a `hidden beast` number, since 13 + 490 + 7 + 72 + 83 + 1 = 666.

It is not a de Polignac number, because 13490772831 - 2⁶ = 13490772767 is a prime.

It is a super-2 number, since 2×13490772831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13490772839) 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 39 ways as a sum of consecutive naturals, for example, 2642181 + ... + 2647281.

Almost surely, 2^13490772831 is an apocalyptic number.

13490772831 is a deficient number, since it is larger than the sum of its proper divisors (6925961793).

13490772831 is a wasteful number, since it uses less digits than its factorization.

13490772831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533 (or 5524 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 13490772831 in words is "thirteen billion, four hundred ninety million, seven hundred seventy-two thousand, eight hundred thirty-one".