68089955713 has 4 divisors (see below), whose sum is σ = 73327644628. Its totient is φ = 62852266800.

The previous prime is 68089955651. The next prime is 68089955743. The reversal of 68089955713 is 31755998086.

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 23858818369 + 44231137344 = 154463^2 + 210312^2 .

It is a cyclic number.

It is not a de Polignac number, because 68089955713 - 2⁹ = 68089955201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68089955743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2618844438 + ... + 2618844463.

It is an arithmetic number, because the mean of its divisors is an integer number (18331911157).

Almost surely, 2^68089955713 is an apocalyptic number.

It is an amenable number.

68089955713 is a deficient number, since it is larger than the sum of its proper divisors (5237688915).

68089955713 is a wasteful number, since it uses less digits than its factorization.

68089955713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237688914.

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 68089955713 in words is "sixty-eight billion, eighty-nine million, nine hundred fifty-five thousand, seven hundred thirteen".