68040498680 has 128 divisors (see below), whose sum is σ = 192835399680. Its totient is φ = 20988702720.

The previous prime is 68040498661. The next prime is 68040498737. The reversal of 68040498680 is 8689404086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184889 + ... + 412631.

It is an arithmetic number, because the mean of its divisors is an integer number (1506526560).

Almost surely, 2^68040498680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68040498680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96417699840).

68040498680 is an abundant number, since it is smaller than the sum of its proper divisors (124794901000).

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

68040498680 is a wasteful number, since it uses less digits than its factorization.

68040498680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227869 (or 227865 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 68040498680 in words is "sixty-eight billion, forty million, four hundred ninety-eight thousand, six hundred eighty".