2516426639 has 2 divisors, whose sum is σ = 2516426640. Its totient is φ = 2516426638.

The previous prime is 2516426623. The next prime is 2516426651. The reversal of 2516426639 is 9366246152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2516426639 - 2⁴ = 2516426623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2516426639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2516426609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258213319 + 1258213320.

It is an arithmetic number, because the mean of its divisors is an integer number (1258213320).

Almost surely, 2^2516426639 is an apocalyptic number.

2516426639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2516426639 is an equidigital number, since it uses as much as digits as its factorization.

2516426639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 44.

The square root of 2516426639 is about 50163.9974384020. The cubic root of 2516426639 is about 1360.1749052372.

The spelling of 2516426639 in words is "two billion, five hundred sixteen million, four hundred twenty-six thousand, six hundred thirty-nine".