68537418705 has 64 divisors (see below), whose sum is σ = 147441876480. Its totient is φ = 29488361472.

The previous prime is 68537418689. The next prime is 68537418713. The reversal of 68537418705 is 50781473586.

It is a happy number.

68537418705 is a `hidden beast` number, since 68 + 537 + 41 + 8 + 7 + 0 + 5 = 666.

It is not a de Polignac number, because 68537418705 - 2⁴ = 68537418689 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 2117064 + ... + 2149193.

It is an arithmetic number, because the mean of its divisors is an integer number (2303779320).

Almost surely, 2^68537418705 is an apocalyptic number.

It is an amenable number.

68537418705 is an abundant number, since it is smaller than the sum of its proper divisors (78904457775).

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

68537418705 is a wasteful number, since it uses less digits than its factorization.

68537418705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266295 (or 4266289 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 68537418705 in words is "sixty-eight billion, five hundred thirty-seven million, four hundred eighteen thousand, seven hundred five".