68813314644 has 24 divisors (see below), whose sum is σ = 161040862528. Its totient is φ = 22869705600.

The previous prime is 68813314639. The next prime is 68813314673. The reversal of 68813314644 is 44641331886.

It is a junction number, because it is equal to n+sod(n) for n = 68813314593 and 68813314602.

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, 8504032 + ... + 8512119.

Almost surely, 2^68813314644 is an apocalyptic number.

It is an amenable number.

68813314644 is an abundant number, since it is smaller than the sum of its proper divisors (92227547884).

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

68813314644 is a wasteful number, since it uses less digits than its factorization.

68813314644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17016495 (or 17016493 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The spelling of 68813314644 in words is "sixty-eight billion, eight hundred thirteen million, three hundred fourteen thousand, six hundred forty-four".