2115805323319 has 4 divisors (see below), whose sum is σ = 2117444213320. Its totient is φ = 2114166433320.

The previous prime is 2115805323311. The next prime is 2115805323341. The reversal of 2115805323319 is 9133235085112.

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

It is a cyclic number.

It is not a de Polignac number, because 2115805323319 - 2³ = 2115805323311 is a prime.

It is a super-2 number, since 2×2115805323319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115805323311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819443064 + ... + 819445645.

It is an arithmetic number, because the mean of its divisors is an integer number (529361053330).

Almost surely, 2^{2115805323319} is an apocalyptic number.

2115805323319 is a deficient number, since it is larger than the sum of its proper divisors (1638890001).

2115805323319 is a wasteful number, since it uses less digits than its factorization.

2115805323319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638890000.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 2115805323319 in words is "two trillion, one hundred fifteen billion, eight hundred five million, three hundred twenty-three thousand, three hundred nineteen".