13531906968 has 64 divisors (see below), whose sum is σ = 34941542400. Its totient is φ = 4362570240.

The previous prime is 13531906967. The next prime is 13531907021. The reversal of 13531906968 is 86960913531.

It is a super-2 number, since 2×13531906968² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13531906968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531906967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579705 + ... + 1588247.

It is an arithmetic number, because the mean of its divisors is an integer number (545961600).

Almost surely, 2^13531906968 is an apocalyptic number.

It is an amenable number.

13531906968 is an abundant number, since it is smaller than the sum of its proper divisors (21409635432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13531906968 is a wasteful number, since it uses less digits than its factorization.

13531906968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10712 (or 10708 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 13531906968 in words is "thirteen billion, five hundred thirty-one million, nine hundred six thousand, nine hundred sixty-eight".