2139786795 has 16 divisors (see below), whose sum is σ = 3424442400. Its totient is φ = 1140958464.

The previous prime is 2139786791. The next prime is 2139786823. The reversal of 2139786795 is 5976879312.

It is not a de Polignac number, because 2139786795 - 2² = 2139786791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2139786791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64231 + ... + 91679.

It is an arithmetic number, because the mean of its divisors is an integer number (214027650).

Almost surely, 2^2139786795 is an apocalyptic number.

2139786795 is a deficient number, since it is larger than the sum of its proper divisors (1284655605).

2139786795 is a wasteful number, since it uses less digits than its factorization.

2139786795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32654.

The product of its digits is 5715360, while the sum is 57.

The square root of 2139786795 is about 46257.8295534929. The cubic root of 2139786795 is about 1288.6159454063.

The spelling of 2139786795 in words is "two billion, one hundred thirty-nine million, seven hundred eighty-six thousand, seven hundred ninety-five".