68807992320 has 1408 divisors, whose sum is σ = 288636825600. Its totient is φ = 15415640064.

The previous prime is 68807992291. The next prime is 68807992369. The reversal of 68807992320 is 2329970886.

It is a happy number.

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 127 ways as a sum of consecutive naturals, for example, 1026984927 + ... + 1026984993.

Almost surely, 2^68807992320 is an apocalyptic number.

68807992320 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 68807992320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144318412800).

68807992320 is an abundant number, since it is smaller than the sum of its proper divisors (219828833280).

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

68807992320 is a wasteful number, since it uses less digits than its factorization.

68807992320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 68807992320 in words is "sixty-eight billion, eight hundred seven million, nine hundred ninety-two thousand, three hundred twenty".