2138297325688 has 8 divisors (see below), whose sum is σ = 4009307485680. Its totient is φ = 1069148662840.

The previous prime is 2138297325677. The next prime is 2138297325691. The reversal of 2138297325688 is 8865237928312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133643582848 + ... + 133643582863.

It is an arithmetic number, because the mean of its divisors is an integer number (501163435710).

Almost surely, 2^{2138297325688} is an apocalyptic number.

It is an amenable number.

2138297325688 is a deficient number, since it is larger than the sum of its proper divisors (1871010159992).

2138297325688 is a wasteful number, since it uses less digits than its factorization.

2138297325688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267287165717 (or 267287165713 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 64.

The spelling of 2138297325688 in words is "two trillion, one hundred thirty-eight billion, two hundred ninety-seven million, three hundred twenty-five thousand, six hundred eighty-eight".