68881937632 has 12 divisors (see below), whose sum is σ = 135611314776. Its totient is φ = 34440968800.

The previous prime is 68881937591. The next prime is 68881937639. The reversal of 68881937632 is 23673918886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68881937639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076280244 + ... + 1076280307.

It is an arithmetic number, because the mean of its divisors is an integer number (11300942898).

Almost surely, 2^68881937632 is an apocalyptic number.

It is an amenable number.

68881937632 is a deficient number, since it is larger than the sum of its proper divisors (66729377144).

68881937632 is a wasteful number, since it uses less digits than its factorization.

68881937632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152560561 (or 2152560553 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 61.

The spelling of 68881937632 in words is "sixty-eight billion, eight hundred eighty-one million, nine hundred thirty-seven thousand, six hundred thirty-two".