68655833538 has 8 divisors (see below), whose sum is σ = 137311667088. Its totient is φ = 22885277844.

The previous prime is 68655833509. The next prime is 68655833549. The reversal of 68655833538 is 83533855686.

It is a sphenic number, since it is the product of 3 distinct primes.

68655833538 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5721319456 + ... + 5721319467.

It is an arithmetic number, because the mean of its divisors is an integer number (17163958386).

Almost surely, 2^68655833538 is an apocalyptic number.

68655833538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68655833538 is a wasteful number, since it uses less digits than its factorization.

68655833538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11442638928.

The product of its digits is 62208000, while the sum is 60.

The spelling of 68655833538 in words is "sixty-eight billion, six hundred fifty-five million, eight hundred thirty-three thousand, five hundred thirty-eight".