68489794416 has 40 divisors (see below), whose sum is σ = 180270314640. Its totient is φ = 22399177216.

The previous prime is 68489794367. The next prime is 68489794433. The reversal of 68489794416 is 61449798486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13458501 + ... + 13463588.

It is an arithmetic number, because the mean of its divisors is an integer number (4506757866).

Almost surely, 2^68489794416 is an apocalyptic number.

It is an amenable number.

68489794416 is an abundant number, since it is smaller than the sum of its proper divisors (111780520224).

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

68489794416 is a wasteful number, since it uses less digits than its factorization.

68489794416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26922153 (or 26922147 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 66.

The spelling of 68489794416 in words is "sixty-eight billion, four hundred eighty-nine million, seven hundred ninety-four thousand, four hundred sixteen".