68851574913 has 16 divisors (see below), whose sum is σ = 100165738752. Its totient is φ = 41720730000.

The previous prime is 68851574887. The next prime is 68851574959. The reversal of 68851574913 is 31947515886.

It is not a de Polignac number, because 68851574913 - 2⁹ = 68851574401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68851574993) 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, 1878 + ... + 371088.

It is an arithmetic number, because the mean of its divisors is an integer number (6260358672).

Almost surely, 2^68851574913 is an apocalyptic number.

It is an amenable number.

68851574913 is a deficient number, since it is larger than the sum of its proper divisors (31314163839).

68851574913 is a wasteful number, since it uses less digits than its factorization.

68851574913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374876.

The product of its digits is 7257600, while the sum is 57.

The spelling of 68851574913 in words is "sixty-eight billion, eight hundred fifty-one million, five hundred seventy-four thousand, nine hundred thirteen".