68819375013 has 16 divisors (see below), whose sum is σ = 95405143680. Its totient is φ = 44072657216.

The previous prime is 68819374999. The next prime is 68819375039. The reversal of 68819375013 is 31057391886.

It is a cyclic number.

It is not a de Polignac number, because 68819375013 - 2²¹ = 68817277861 is a prime.

It is a super-2 number, since 2×68819375013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68819375113) 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, 1990545 + ... + 2024822.

It is an arithmetic number, because the mean of its divisors is an integer number (5962821480).

Almost surely, 2^68819375013 is an apocalyptic number.

It is an amenable number.

68819375013 is a deficient number, since it is larger than the sum of its proper divisors (26585768667).

68819375013 is a wasteful number, since it uses less digits than its factorization.

68819375013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015596.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 68819375013 in words is "sixty-eight billion, eight hundred nineteen million, three hundred seventy-five thousand, thirteen".