2399769539 has 2 divisors, whose sum is σ = 2399769540. Its totient is φ = 2399769538.

The previous prime is 2399769523. The next prime is 2399769557. The reversal of 2399769539 is 9359679932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2399769539 - 2⁴ = 2399769523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2399769509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199884769 + 1199884770.

It is an arithmetic number, because the mean of its divisors is an integer number (1199884770).

Almost surely, 2^2399769539 is an apocalyptic number.

2399769539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2399769539 is an equidigital number, since it uses as much as digits as its factorization.

2399769539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24800580, while the sum is 62.

The square root of 2399769539 is about 48987.4426664630. The cubic root of 2399769539 is about 1338.8230437406.

The spelling of 2399769539 in words is "two billion, three hundred ninety-nine million, seven hundred sixty-nine thousand, five hundred thirty-nine".