65788026680 has 64 divisors (see below), whose sum is σ = 155847348000. Its totient is φ = 24924824064.

The previous prime is 65788026671. The next prime is 65788026709. The reversal of 65788026680 is 8662088756.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6528686 + ... + 6538754.

Almost surely, 2^65788026680 is an apocalyptic number.

It is an amenable number.

65788026680 is an abundant number, since it is smaller than the sum of its proper divisors (90059321320).

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

65788026680 is a wasteful number, since it uses less digits than its factorization.

65788026680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18696 (or 18692 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 65788026680 in words is "sixty-five billion, seven hundred eighty-eight million, twenty-six thousand, six hundred eighty".