2137893720 has 64 divisors (see below), whose sum is σ = 6456780000. Its totient is φ = 566274048.

The previous prime is 2137893713. The next prime is 2137893721. The reversal of 2137893720 is 273987312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137893721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41905 + ... + 77664.

Almost surely, 2^2137893720 is an apocalyptic number.

2137893720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2137893720 is an abundant number, since it is smaller than the sum of its proper divisors (4318886280).

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

2137893720 is a wasteful number, since it uses less digits than its factorization.

2137893720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119732 (or 119728 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 2137893720 is about 46237.3628140706. The cubic root of 2137893720 is about 1288.2358193138.

The spelling of 2137893720 in words is "two billion, one hundred thirty-seven million, eight hundred ninety-three thousand, seven hundred twenty".