2137591466 has 12 divisors (see below), whose sum is σ = 3384027522. Its totient is φ = 1012542984.

The previous prime is 2137591439. The next prime is 2137591471. The reversal of 2137591466 is 6641957312.

It can be written as a sum of positive squares in only one way, i.e., 1503810841 + 633780625 = 38779^2 + 25175^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1479605 + ... + 1481048.

Almost surely, 2^2137591466 is an apocalyptic number.

2137591466 is a deficient number, since it is larger than the sum of its proper divisors (1246436056).

2137591466 is a wasteful number, since it uses less digits than its factorization.

2137591466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960693 (or 2960674 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 2137591466 is about 46234.0941946525. The cubic root of 2137591466 is about 1288.1751064765.

The spelling of 2137591466 in words is "two billion, one hundred thirty-seven million, five hundred ninety-one thousand, four hundred sixty-six".