68056690400 has 108 divisors (see below), whose sum is σ = 166966000992. Its totient is φ = 27088542720.

The previous prime is 68056690399. The next prime is 68056690411. The reversal of 68056690400 is 409665086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 43430417 + ... + 43431983.

Almost surely, 2^68056690400 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 68056690400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83483000496).

68056690400 is an abundant number, since it is smaller than the sum of its proper divisors (98909310592).

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

68056690400 is a wasteful number, since it uses less digits than its factorization.

68056690400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 68056690400 in words is "sixty-eight billion, fifty-six million, six hundred ninety thousand, four hundred".