864518648 has 16 divisors (see below), whose sum is σ = 1852540080. Its totient is φ = 370507968.

The previous prime is 864518617. The next prime is 864518651. The reversal of 864518648 is 846815468.

864518648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 864518596 and 864518605.

It is a congruent number.

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, 7718861 + ... + 7718972.

It is an arithmetic number, because the mean of its divisors is an integer number (115783755).

Almost surely, 2^864518648 is an apocalyptic number.

It is an amenable number.

864518648 is an abundant number, since it is smaller than the sum of its proper divisors (988021432).

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

864518648 is a wasteful number, since it uses less digits than its factorization.

864518648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15437846 (or 15437842 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 50.

The square root of 864518648 is about 29402.6979714447. The cubic root of 864518648 is about 952.6311723144.

The spelling of 864518648 in words is "eight hundred sixty-four million, five hundred eighteen thousand, six hundred forty-eight".