8728651580 has 48 divisors (see below), whose sum is σ = 20154064896. Its totient is φ = 3149052480.

The previous prime is 8728651553. The next prime is 8728651583. The reversal of 8728651580 is 851568278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8728651583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128264 + ... + 184143.

It is an arithmetic number, because the mean of its divisors is an integer number (419876352).

Almost surely, 2^8728651580 is an apocalyptic number.

It is an amenable number.

8728651580 is an abundant number, since it is smaller than the sum of its proper divisors (11425413316).

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

8728651580 is a wasteful number, since it uses less digits than its factorization.

8728651580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312554 (or 312552 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 50.

The square root of 8728651580 is about 93427.2528762352. The cubic root of 8728651580 is about 2058.9654197934.

The spelling of 8728651580 in words is "eight billion, seven hundred twenty-eight million, six hundred fifty-one thousand, five hundred eighty".