68651306884 has 12 divisors (see below), whose sum is σ = 120709171408. Its totient is φ = 34162972200.

The previous prime is 68651306869. The next prime is 68651306917. The reversal of 68651306884 is 48860315686.

It is a super-2 number, since 2×68651306884² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40669362 + ... + 40671049.

Almost surely, 2^68651306884 is an apocalyptic number.

It is an amenable number.

68651306884 is a deficient number, since it is larger than the sum of its proper divisors (52057864524).

68651306884 is a wasteful number, since it uses less digits than its factorization.

68651306884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81340626 (or 81340624 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 68651306884 in words is "sixty-eight billion, six hundred fifty-one million, three hundred six thousand, eight hundred eighty-four".