68716344489 has 64 divisors (see below), whose sum is σ = 102333901824. Its totient is φ = 40746698496.

The previous prime is 68716344481. The next prime is 68716344491. The reversal of 68716344489 is 98444361786.

It is not a de Polignac number, because 68716344489 - 2³ = 68716344481 is a prime.

It is a super-2 number, since 2×68716344489² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68716344481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52574974 + ... + 52576280.

It is an arithmetic number, because the mean of its divisors is an integer number (1598967216).

Almost surely, 2^68716344489 is an apocalyptic number.

It is an amenable number.

68716344489 is a deficient number, since it is larger than the sum of its proper divisors (33617557335).

68716344489 is a wasteful number, since it uses less digits than its factorization.

68716344489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its digits is 27869184, while the sum is 60.

The spelling of 68716344489 in words is "sixty-eight billion, seven hundred sixteen million, three hundred forty-four thousand, four hundred eighty-nine".