68947872288 has 48 divisors (see below), whose sum is σ = 181119568896. Its totient is φ = 22965937920.

The previous prime is 68947872263. The next prime is 68947872293. The reversal of 68947872288 is 88227874986.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127456 + ... + 392607.

It is an arithmetic number, because the mean of its divisors is an integer number (3773324352).

Almost surely, 2^68947872288 is an apocalyptic number.

It is an amenable number.

68947872288 is an abundant number, since it is smaller than the sum of its proper divisors (112171696608).

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

68947872288 is a wasteful number, since it uses less digits than its factorization.

68947872288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521457 (or 521449 counting only the distinct ones).

The product of its digits is 173408256, while the sum is 69.

The spelling of 68947872288 in words is "sixty-eight billion, nine hundred forty-seven million, eight hundred seventy-two thousand, two hundred eighty-eight".