2563642799 has 2 divisors, whose sum is σ = 2563642800. Its totient is φ = 2563642798.

The previous prime is 2563642771. The next prime is 2563642819. The reversal of 2563642799 is 9972463652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2563642799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2563642799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2563642769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281821399 + 1281821400.

It is an arithmetic number, because the mean of its divisors is an integer number (1281821400).

Almost surely, 2^2563642799 is an apocalyptic number.

2563642799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563642799 is an equidigital number, since it uses as much as digits as its factorization.

2563642799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 53.

The square root of 2563642799 is about 50632.4283340232. The cubic root of 2563642799 is about 1368.6293142579.

The spelling of 2563642799 in words is "two billion, five hundred sixty-three million, six hundred forty-two thousand, seven hundred ninety-nine".