68669031488 has 84 divisors (see below), whose sum is σ = 148215736080. Its totient is φ = 31477628160.

The previous prime is 68669031479. The next prime is 68669031491. The reversal of 68669031488 is 88413096686.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

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, 1139195 + ... + 1197957.

Almost surely, 2^68669031488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68669031488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74107868040).

68669031488 is an abundant number, since it is smaller than the sum of its proper divisors (79546704592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68669031488 is a wasteful number, since it uses less digits than its factorization.

68669031488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58856 (or 58815 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 59.

The spelling of 68669031488 in words is "sixty-eight billion, six hundred sixty-nine million, thirty-one thousand, four hundred eighty-eight".