68845281792 has 80 divisors (see below), whose sum is σ = 209609328192. Its totient is φ = 19670077440.

The previous prime is 68845281787. The next prime is 68845281821. The reversal of 68845281792 is 29718254886.

It is a super-3 number, since 3×68845281792³ (a number of 33 digits) contains 333 as substring.

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, 3190759 + ... + 3212262.

Almost surely, 2^68845281792 is an apocalyptic number.

It is an amenable number.

68845281792 is an abundant number, since it is smaller than the sum of its proper divisors (140764046400).

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

68845281792 is an equidigital number, since it uses as much as digits as its factorization.

68845281792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6403049 (or 6403033 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 60.

The spelling of 68845281792 in words is "sixty-eight billion, eight hundred forty-five million, two hundred eighty-one thousand, seven hundred ninety-two".