2315388864 has 28 divisors (see below), whose sum is σ = 6126133544. Its totient is φ = 771796224.

The previous prime is 2315388857. The next prime is 2315388869. The reversal of 2315388864 is 4688835132.

It is a super-2 number, since 2×2315388864² = 10722051183070420992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315388869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6029467 + ... + 6029850.

Almost surely, 2^2315388864 is an apocalyptic number.

2315388864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2315388864 is an abundant number, since it is smaller than the sum of its proper divisors (3810744680).

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

2315388864 is a wasteful number, since it uses less digits than its factorization.

2315388864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12059332 (or 12059322 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 2315388864 is about 48118.4877567864. The cubic root of 2315388864 is about 1322.9435504892.

The spelling of 2315388864 in words is "two billion, three hundred fifteen million, three hundred eighty-eight thousand, eight hundred sixty-four".