2256682438915 has 4 divisors (see below), whose sum is σ = 2708018926704. Its totient is φ = 1805345951128.

The previous prime is 2256682438903. The next prime is 2256682438921. The reversal of 2256682438915 is 5198342866522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2256682438915 is a prime.

It is a Duffinian 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, 225668243887 + ... + 225668243896.

It is an arithmetic number, because the mean of its divisors is an integer number (677004731676).

Almost surely, 2^{2256682438915} is an apocalyptic number.

2256682438915 is a deficient number, since it is larger than the sum of its proper divisors (451336487789).

2256682438915 is an equidigital number, since it uses as much as digits as its factorization.

2256682438915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451336487788.

The product of its digits is 49766400, while the sum is 61.

The spelling of 2256682438915 in words is "two trillion, two hundred fifty-six billion, six hundred eighty-two million, four hundred thirty-eight thousand, nine hundred fifteen".