68108040051 has 16 divisors (see below), whose sum is σ = 91400094720. Its totient is φ = 45111608640.

The previous prime is 68108040041. The next prime is 68108040107. The reversal of 68108040051 is 15004080186.

It is not a de Polignac number, because 68108040051 - 2¹¹ = 68108038003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68108039994 and 68108040021.

It is not an unprimeable number, because it can be changed into a prime (68108040041) 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, 175191 + ... + 408543.

It is an arithmetic number, because the mean of its divisors is an integer number (5712505920).

Almost surely, 2^68108040051 is an apocalyptic number.

68108040051 is a deficient number, since it is larger than the sum of its proper divisors (23292054669).

68108040051 is a wasteful number, since it uses less digits than its factorization.

68108040051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233986.

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 68108040051 in words is "sixty-eight billion, one hundred eight million, forty thousand, fifty-one".