2599042709 has 2 divisors, whose sum is σ = 2599042710. Its totient is φ = 2599042708.

The previous prime is 2599042657. The next prime is 2599042753. The reversal of 2599042709 is 9072409952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2598756484 + 286225 = 50978^2 + 535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2599042709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2599042609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1299521354 + 1299521355.

It is an arithmetic number, because the mean of its divisors is an integer number (1299521355).

Almost surely, 2^2599042709 is an apocalyptic number.

It is an amenable number.

2599042709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2599042709 is an equidigital number, since it uses as much as digits as its factorization.

2599042709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 2599042709 is about 50980.8072611645. The cubic root of 2599042709 is about 1374.9000846847.

The spelling of 2599042709 in words is "two billion, five hundred ninety-nine million, forty-two thousand, seven hundred nine".