28610765720 has 64 divisors (see below), whose sum is σ = 64799935200. Its totient is φ = 11368760320.

The previous prime is 28610765719. The next prime is 28610765761. The reversal of 28610765720 is 2756701682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11719700 + ... + 11722140.

Almost surely, 2^28610765720 is an apocalyptic number.

28610765720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28610765720 is an abundant number, since it is smaller than the sum of its proper divisors (36189169480).

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

28610765720 is a wasteful number, since it uses less digits than its factorization.

28610765720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268 (or 4264 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 28610765720 in words is "twenty-eight billion, six hundred ten million, seven hundred sixty-five thousand, seven hundred twenty".