2169995539 has 2 divisors, whose sum is σ = 2169995540. Its totient is φ = 2169995538.

The previous prime is 2169995519. The next prime is 2169995599. The reversal of 2169995539 is 9355999612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2169995539 - 2⁷ = 2169995411 is a prime.

It is not a weakly prime, because it can be changed into another prime (2169995519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084997769 + 1084997770.

It is an arithmetic number, because the mean of its divisors is an integer number (1084997770).

Almost surely, 2^2169995539 is an apocalyptic number.

2169995539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2169995539 is an equidigital number, since it uses as much as digits as its factorization.

2169995539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5904900, while the sum is 58.

The square root of 2169995539 is about 46583.2109133752. The cubic root of 2169995539 is about 1294.6517032146.

The spelling of 2169995539 in words is "two billion, one hundred sixty-nine million, nine hundred ninety-five thousand, five hundred thirty-nine".