1015872864 has 36 divisors (see below), whose sum is σ = 2667486276. Its totient is φ = 338520192.

The previous prime is 1015872863. The next prime is 1015872877. The reversal of 1015872864 is 4682785101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015872863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 310662 + ... + 313914.

It is an arithmetic number, because the mean of its divisors is an integer number (74096841).

Almost surely, 2^1015872864 is an apocalyptic number.

It is an amenable number.

1015872864 is an abundant number, since it is smaller than the sum of its proper divisors (1651613412).

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

1015872864 is an frugal number, since it uses more digits than its factorization.

1015872864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519 (or 3258 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 1015872864 is about 31872.7605330947. The cubic root of 1015872864 is about 1005.2632047433.

The spelling of 1015872864 in words is "one billion, fifteen million, eight hundred seventy-two thousand, eight hundred sixty-four".