8728657928650 has 24 divisors (see below), whose sum is σ = 17711240452704. Its totient is φ = 3174057428400.

The previous prime is 8728657928633. The next prime is 8728657928659. The reversal of 8728657928650 is 568297568278.

It is not an unprimeable number, because it can be changed into a prime (8728657928659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7935143022 + ... + 7935144121.

It is an arithmetic number, because the mean of its divisors is an integer number (737968352196).

Almost surely, 2^{8728657928650} is an apocalyptic number.

8728657928650 is an abundant number, since it is smaller than the sum of its proper divisors (8982582524054).

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

8728657928650 is a wasteful number, since it uses less digits than its factorization.

8728657928650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15870287166 (or 15870287161 counting only the distinct ones).

The product of its (nonzero) digits is 812851200, while the sum is 73.

The spelling of 8728657928650 in words is "eight trillion, seven hundred twenty-eight billion, six hundred fifty-seven million, nine hundred twenty-eight thousand, six hundred fifty".