2137639896 has 144 divisors (see below), whose sum is σ = 6984399240. Its totient is φ = 610727040.

The previous prime is 2137639873. The next prime is 2137639921. The reversal of 2137639896 is 6989367312.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 84036 + ... + 106476.

Almost surely, 2^2137639896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2137639896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3492199620).

2137639896 is an abundant number, since it is smaller than the sum of its proper divisors (4846759344).

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

2137639896 is a wasteful number, since it uses less digits than its factorization.

2137639896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22476 (or 22453 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 2137639896 is about 46234.6179393753. The cubic root of 2137639896 is about 1288.1848348476.

The spelling of 2137639896 in words is "two billion, one hundred thirty-seven million, six hundred thirty-nine thousand, eight hundred ninety-six".