2315895905381 has 4 divisors (see below), whose sum is σ = 2315949978432. Its totient is φ = 2315841832332.

The previous prime is 2315895905333. The next prime is 2315895905441. The reversal of 2315895905381 is 1835095985132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2315895905381 - 2²⁶ = 2315828796517 is a prime.

It is a super-2 number, since 2×2315895905381² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2315895905381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315895955381) 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, 26972231 + ... + 27057956.

It is an arithmetic number, because the mean of its divisors is an integer number (578987494608).

Almost surely, 2^{2315895905381} is an apocalyptic number.

It is an amenable number.

2315895905381 is a deficient number, since it is larger than the sum of its proper divisors (54073051).

2315895905381 is an equidigital number, since it uses as much as digits as its factorization.

2315895905381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54073050.

The product of its (nonzero) digits is 11664000, while the sum is 59.

The spelling of 2315895905381 in words is "two trillion, three hundred fifteen billion, eight hundred ninety-five million, nine hundred five thousand, three hundred eighty-one".