68900682880 has 32 divisors (see below), whose sum is σ = 164715696540. Its totient is φ = 27560272896.

The previous prime is 68900682833. The next prime is 68900682881. The reversal of 68900682880 is 8828600986.

It can be written as a sum of positive squares in 2 ways, for example, as 68899950144 + 732736 = 262488^2 + 856^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (68900682881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53828019 + ... + 53829298.

Almost surely, 2^68900682880 is an apocalyptic number.

It is an amenable number.

68900682880 is an abundant number, since it is smaller than the sum of its proper divisors (95815013660).

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

68900682880 is a wasteful number, since it uses less digits than its factorization.

68900682880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107657336 (or 107657324 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 55.

The spelling of 68900682880 in words is "sixty-eight billion, nine hundred million, six hundred eighty-two thousand, eight hundred eighty".