2137271851 has 12 divisors (see below), whose sum is σ = 2524719240. Its totient is φ = 1793513280.

The previous prime is 2137271837. The next prime is 2137271863. The reversal of 2137271851 is 1581727312.

It is not a de Polignac number, because 2137271851 - 2⁵ = 2137271819 is a prime.

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 2137271851.

It is not an unprimeable number, because it can be changed into a prime (2137271831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 572986 + ... + 576703.

It is an arithmetic number, because the mean of its divisors is an integer number (210393270).

Almost surely, 2^2137271851 is an apocalyptic number.

2137271851 is a deficient number, since it is larger than the sum of its proper divisors (387447389).

2137271851 is a wasteful number, since it uses less digits than its factorization.

2137271851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149726 (or 1149713 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 2137271851 is about 46230.6375794235. The cubic root of 2137271851 is about 1288.1109001622.

The spelling of 2137271851 in words is "two billion, one hundred thirty-seven million, two hundred seventy-one thousand, eight hundred fifty-one".