68908078582 has 48 divisors (see below), whose sum is σ = 126636758640. Its totient is φ = 27962044992.

The previous prime is 68908078571. The next prime is 68908078627. The reversal of 68908078582 is 28587080986.

It is a self number, because there is not a number n which added to its sum of digits gives 68908078582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3664348 + ... + 3683104.

It is an arithmetic number, because the mean of its divisors is an integer number (2638265805).

Almost surely, 2^68908078582 is an apocalyptic number.

68908078582 is a deficient number, since it is larger than the sum of its proper divisors (57728680058).

68908078582 is a wasteful number, since it uses less digits than its factorization.

68908078582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20765 (or 20758 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 68908078582 in words is "sixty-eight billion, nine hundred eight million, seventy-eight thousand, five hundred eighty-two".