2135639789 has 8 divisors (see below), whose sum is σ = 2148636672. Its totient is φ = 2122682320.

The previous prime is 2135639783. The next prime is 2135639791. The reversal of 2135639789 is 9879365312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2135639789 - 2²⁴ = 2118862573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2135639789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135639783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102704 + ... + 121734.

It is an arithmetic number, because the mean of its divisors is an integer number (268579584).

Almost surely, 2^2135639789 is an apocalyptic number.

It is an amenable number.

2135639789 is a deficient number, since it is larger than the sum of its proper divisors (12996883).

2135639789 is a wasteful number, since it uses less digits than its factorization.

2135639789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19707.

The product of its digits is 2449440, while the sum is 53.

The square root of 2135639789 is about 46212.9829052400. The cubic root of 2135639789 is about 1287.7829412284.

The spelling of 2135639789 in words is "two billion, one hundred thirty-five million, six hundred thirty-nine thousand, seven hundred eighty-nine".