2136889369 has 4 divisors (see below), whose sum is σ = 2138587920. Its totient is φ = 2135190820.

The previous prime is 2136889333. The next prime is 2136889411. The reversal of 2136889369 is 9639886312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2136889369 - 2⁹ = 2136888857 is a prime.

It is a super-2 number, since 2×2136889369² = 9132592350690436322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136869369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847387 + ... + 849904.

It is an arithmetic number, because the mean of its divisors is an integer number (534646980).

Almost surely, 2^2136889369 is an apocalyptic number.

It is an amenable number.

2136889369 is a deficient number, since it is larger than the sum of its proper divisors (1698551).

2136889369 is a wasteful number, since it uses less digits than its factorization.

2136889369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698550.

The product of its digits is 3359232, while the sum is 55.

The square root of 2136889369 is about 46226.5007219885. The cubic root of 2136889369 is about 1288.0340563070.

The spelling of 2136889369 in words is "two billion, one hundred thirty-six million, eight hundred eighty-nine thousand, three hundred sixty-nine".