68507192880 has 320 divisors, whose sum is σ = 270375552000. Its totient is φ = 15618355200.

The previous prime is 68507192839. The next prime is 68507192891. The reversal of 68507192880 is 8829170586.

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 63 ways as a sum of consecutive naturals, for example, 6057471 + ... + 6068769.

It is an arithmetic number, because the mean of its divisors is an integer number (844923600).

Almost surely, 2^68507192880 is an apocalyptic number.

68507192880 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 68507192880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135187776000).

68507192880 is an abundant number, since it is smaller than the sum of its proper divisors (201868359120).

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

68507192880 is a wasteful number, since it uses less digits than its factorization.

68507192880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11729 (or 11717 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 68507192880 in words is "sixty-eight billion, five hundred seven million, one hundred ninety-two thousand, eight hundred eighty".