68982315887 has 16 divisors (see below), whose sum is σ = 70263936000. Its totient is φ = 67714741920.

The previous prime is 68982315881. The next prime is 68982315901. The reversal of 68982315887 is 78851328986.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68982315887 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 (68982315881) 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, 6866414 + ... + 6876452.

It is an arithmetic number, because the mean of its divisors is an integer number (4391496000).

Almost surely, 2^68982315887 is an apocalyptic number.

68982315887 is a deficient number, since it is larger than the sum of its proper divisors (1281620113).

68982315887 is a wasteful number, since it uses less digits than its factorization.

68982315887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10726.

The product of its digits is 46448640, while the sum is 65.

The spelling of 68982315887 in words is "sixty-eight billion, nine hundred eighty-two million, three hundred fifteen thousand, eight hundred eighty-seven".