2115818273 has 8 divisors (see below), whose sum is σ = 2137452192. Its totient is φ = 2094274336.

The previous prime is 2115818269. The next prime is 2115818281. The reversal of 2115818273 is 3728185112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2115818273 - 2² = 2115818269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115818213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25286 + ... + 69792.

It is an arithmetic number, because the mean of its divisors is an integer number (267181524).

Almost surely, 2^2115818273 is an apocalyptic number.

It is an amenable number.

2115818273 is a deficient number, since it is larger than the sum of its proper divisors (21633919).

2115818273 is a wasteful number, since it uses less digits than its factorization.

2115818273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44991.

The product of its digits is 26880, while the sum is 38.

The square root of 2115818273 is about 45998.0246641092. The cubic root of 2115818273 is about 1283.7864509730.

The spelling of 2115818273 in words is "two billion, one hundred fifteen million, eight hundred eighteen thousand, two hundred seventy-three".