68910508131 has 16 divisors (see below), whose sum is σ = 97357021440. Its totient is φ = 43234192800.

The previous prime is 68910508109. The next prime is 68910508153. The reversal of 68910508131 is 13180501986.

It is an interprime number because it is at equal distance from previous prime (68910508109) and next prime (68910508153).

It is not a de Polignac number, because 68910508131 - 2⁹ = 68910507619 is a prime.

It is a super-2 number, since 2×68910508131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68910508171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3994560 + ... + 4011773.

It is an arithmetic number, because the mean of its divisors is an integer number (6084813840).

Almost surely, 2^68910508131 is an apocalyptic number.

68910508131 is a deficient number, since it is larger than the sum of its proper divisors (28446513309).

68910508131 is a wasteful number, since it uses less digits than its factorization.

68910508131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8006506.

The product of its (nonzero) digits is 51840, while the sum is 42.

It can be divided in two parts, 689 and 10508131, that added together give a triangular number (10508820 = T₄₅₈₄).

The spelling of 68910508131 in words is "sixty-eight billion, nine hundred ten million, five hundred eight thousand, one hundred thirty-one".