2138297325687 has 12 divisors (see below), whose sum is σ = 3109380900600. Its totient is φ = 1415964223728.

The previous prime is 2138297325677. The next prime is 2138297325691. The reversal of 2138297325687 is 7865237928312.

2138297325687 is a `hidden beast` number, since 2 + 1 + 38 + 2 + 9 + 7 + 32 + 568 + 7 = 666.

It is not a de Polignac number, because 2138297325687 - 2¹⁰ = 2138297324663 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138297325677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 797275813 + ... + 797278494.

It is an arithmetic number, because the mean of its divisors is an integer number (259115075050).

Almost surely, 2^{2138297325687} is an apocalyptic number.

2138297325687 is a deficient number, since it is larger than the sum of its proper divisors (971083574913).

2138297325687 is a wasteful number, since it uses less digits than its factorization.

2138297325687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594554462 (or 1594554459 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 2138297325687 in words is "two trillion, one hundred thirty-eight billion, two hundred ninety-seven million, three hundred twenty-five thousand, six hundred eighty-seven".