2137637638 has 16 divisors (see below), whose sum is σ = 3218813136. Its totient is φ = 1064708640.

The previous prime is 2137637599. The next prime is 2137637639. The reversal of 2137637638 is 8367367312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137637639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674245 + ... + 677407.

It is an arithmetic number, because the mean of its divisors is an integer number (201175821).

Almost surely, 2^2137637638 is an apocalyptic number.

2137637638 is a deficient number, since it is larger than the sum of its proper divisors (1081175498).

2137637638 is a wasteful number, since it uses less digits than its factorization.

2137637638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359.

The product of its digits is 762048, while the sum is 46.

The square root of 2137637638 is about 46234.5935204366. The cubic root of 2137637638 is about 1288.1843812754.

The spelling of 2137637638 in words is "two billion, one hundred thirty-seven million, six hundred thirty-seven thousand, six hundred thirty-eight".