68057114621 has 4 divisors (see below), whose sum is σ = 68059510332. Its totient is φ = 68054718912.

The previous prime is 68057114617. The next prime is 68057114627. The reversal of 68057114621 is 12641175086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30881032900 + 37176081721 = 175730^2 + 192811^2 .

It is a cyclic number.

It is not a de Polignac number, because 68057114621 - 2² = 68057114617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68057114627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154726 + ... + 1212231.

It is an arithmetic number, because the mean of its divisors is an integer number (17014877583).

Almost surely, 2^68057114621 is an apocalyptic number.

It is an amenable number.

68057114621 is a deficient number, since it is larger than the sum of its proper divisors (2395711).

68057114621 is a wasteful number, since it uses less digits than its factorization.

68057114621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395710.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 68057114621 in words is "sixty-eight billion, fifty-seven million, one hundred fourteen thousand, six hundred twenty-one".