68009214720 has 144 divisors (see below), whose sum is σ = 219646032480. Its totient is φ = 17931927552.

The previous prime is 68009214719. The next prime is 68009214737. The reversal of 68009214720 is 2741290086.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242262 + ... + 441258.

It is an arithmetic number, because the mean of its divisors is an integer number (1525319670).

Almost surely, 2^68009214720 is an apocalyptic number.

68009214720 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 68009214720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109823016240).

68009214720 is an abundant number, since it is smaller than the sum of its proper divisors (151636817760).

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

68009214720 is a wasteful number, since it uses less digits than its factorization.

68009214720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199110 (or 199096 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 68009214720 in words is "sixty-eight billion, nine million, two hundred fourteen thousand, seven hundred twenty".