2137671956 has 24 divisors (see below), whose sum is σ = 4280752896. Its totient is φ = 914986080.

The previous prime is 2137671937. The next prime is 2137671971. The reversal of 2137671956 is 6591767312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2137671956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25580 + ... + 70211.

It is an arithmetic number, because the mean of its divisors is an integer number (178364704).

Almost surely, 2^2137671956 is an apocalyptic number.

It is an amenable number.

2137671956 is an abundant number, since it is smaller than the sum of its proper divisors (2143080940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2137671956 is a wasteful number, since it uses less digits than its factorization.

2137671956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96599 (or 96597 counting only the distinct ones).

The product of its digits is 476280, while the sum is 47.

The square root of 2137671956 is about 46234.9646479804. The cubic root of 2137671956 is about 1288.1912748159.

The spelling of 2137671956 in words is "two billion, one hundred thirty-seven million, six hundred seventy-one thousand, nine hundred fifty-six".