2137171863 has 16 divisors (see below), whose sum is σ = 2951877600. Its totient is φ = 1374405120.

The previous prime is 2137171787. The next prime is 2137171867. The reversal of 2137171863 is 3681717312.

It is not a de Polignac number, because 2137171863 - 2¹⁰ = 2137170839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137171867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86668 + ... + 108561.

It is an arithmetic number, because the mean of its divisors is an integer number (184492350).

Almost surely, 2^2137171863 is an apocalyptic number.

2137171863 is a deficient number, since it is larger than the sum of its proper divisors (814705737).

2137171863 is a wasteful number, since it uses less digits than its factorization.

2137171863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195362.

The product of its digits is 42336, while the sum is 39.

The square root of 2137171863 is about 46229.5561626975. The cubic root of 2137171863 is about 1288.0908126160.

The spelling of 2137171863 in words is "two billion, one hundred thirty-seven million, one hundred seventy-one thousand, eight hundred sixty-three".