68108524531 has 16 divisors (see below), whose sum is σ = 71928476928. Its totient is φ = 64364528800.

The previous prime is 68108524507. The next prime is 68108524537. The reversal of 68108524531 is 13542580186.

It is a cyclic number.

It is not a de Polignac number, because 68108524531 - 2¹³ = 68108516339 is a prime.

It is a super-2 number, since 2×68108524531² (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 (68108524537) 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, 634161 + ... + 733741.

It is an arithmetic number, because the mean of its divisors is an integer number (4495529808).

Almost surely, 2^68108524531 is an apocalyptic number.

68108524531 is a deficient number, since it is larger than the sum of its proper divisors (3819952397).

68108524531 is a wasteful number, since it uses less digits than its factorization.

68108524531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99962.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 68108524531 in words is "sixty-eight billion, one hundred eight million, five hundred twenty-four thousand, five hundred thirty-one".