68888880 has 100 divisors (see below), whose sum is σ = 239283792. Its totient is φ = 18368640.

The previous prime is 68888873. The next prime is 68888893. The reversal of 68888880 is 8888886.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1165 + ... + 11795.

Almost surely, 2^68888880 is an apocalyptic number.

68888880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68888880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119641896).

68888880 is an abundant number, since it is smaller than the sum of its proper divisors (170394912).

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

68888880 is a wasteful number, since it uses less digits than its factorization.

68888880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10656 (or 10641 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 54.

The square root of 68888880 is about 8299.9325298463. The cubic root of 68888880 is about 409.9362978564.

The spelling of 68888880 in words is "sixty-eight million, eight hundred eighty-eight thousand, eight hundred eighty".