68578633486 has 24 divisors (see below), whose sum is σ = 113157964080. Its totient is φ = 31147781280.

The previous prime is 68578633469. The next prime is 68578633507. The reversal of 68578633486 is 68433687586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202015 + ... + 421861.

It is an arithmetic number, because the mean of its divisors is an integer number (4714915170).

Almost surely, 2^68578633486 is an apocalyptic number.

68578633486 is a deficient number, since it is larger than the sum of its proper divisors (44579330594).

68578633486 is a wasteful number, since it uses less digits than its factorization.

68578633486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221160 (or 221149 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 64.

The spelling of 68578633486 in words is "sixty-eight billion, five hundred seventy-eight million, six hundred thirty-three thousand, four hundred eighty-six".