2138655675 has 96 divisors (see below), whose sum is σ = 4244728320. Its totient is φ = 938649600.

The previous prime is 2138655647. The next prime is 2138655679. The reversal of 2138655675 is 5765568312.

It is not a de Polignac number, because 2138655675 - 2⁵ = 2138655643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2138655679) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 311530 + ... + 318320.

It is an arithmetic number, because the mean of its divisors is an integer number (44215920).

Almost surely, 2^2138655675 is an apocalyptic number.

2138655675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2138655675 is a deficient number, since it is larger than the sum of its proper divisors (2106072645).

2138655675 is a wasteful number, since it uses less digits than its factorization.

2138655675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853 (or 6848 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 48.

The square root of 2138655675 is about 46245.6016827547. The cubic root of 2138655675 is about 1288.3888454947.

The spelling of 2138655675 in words is "two billion, one hundred thirty-eight million, six hundred fifty-five thousand, six hundred seventy-five".