2187159793 has 32 divisors (see below), whose sum is σ = 2737602560. Its totient is φ = 1701311040.

The previous prime is 2187159791. The next prime is 2187159817. The reversal of 2187159793 is 3979517812.

It is not a de Polignac number, because 2187159793 - 2¹ = 2187159791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2187159793.

It is not an unprimeable number, because it can be changed into a prime (2187159791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2206528 + ... + 2207518.

It is an arithmetic number, because the mean of its divisors is an integer number (85550080).

Almost surely, 2^2187159793 is an apocalyptic number.

It is an amenable number.

2187159793 is a deficient number, since it is larger than the sum of its proper divisors (550442767).

2187159793 is a wasteful number, since it uses less digits than its factorization.

2187159793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397.

The product of its digits is 952560, while the sum is 52.

The square root of 2187159793 is about 46767.0802274420. The cubic root of 2187159793 is about 1298.0562258655.

The spelling of 2187159793 in words is "two billion, one hundred eighty-seven million, one hundred fifty-nine thousand, seven hundred ninety-three".