2137884765 has 16 divisors (see below), whose sum is σ = 3478593600. Its totient is φ = 1120879232.

The previous prime is 2137884757. The next prime is 2137884767. The reversal of 2137884765 is 5674887312.

It is a cyclic number.

It is not a de Polignac number, because 2137884765 - 2³ = 2137884757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137884767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1206960 + ... + 1208729.

It is an arithmetic number, because the mean of its divisors is an integer number (217412100).

Almost surely, 2^2137884765 is an apocalyptic number.

It is an amenable number.

2137884765 is a deficient number, since it is larger than the sum of its proper divisors (1340708835).

2137884765 is a wasteful number, since it uses less digits than its factorization.

2137884765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415756.

The product of its digits is 2257920, while the sum is 51.

The square root of 2137884765 is about 46237.2659766989. The cubic root of 2137884765 is about 1288.2340206325.

The spelling of 2137884765 in words is "two billion, one hundred thirty-seven million, eight hundred eighty-four thousand, seven hundred sixty-five".