2564602979 has 2 divisors, whose sum is σ = 2564602980. Its totient is φ = 2564602978.

The previous prime is 2564602969. The next prime is 2564603011. The reversal of 2564602979 is 9792064652.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2564602979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2564602939) 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, 1282301489 + 1282301490.

It is an arithmetic number, because the mean of its divisors is an integer number (1282301490).

Almost surely, 2^2564602979 is an apocalyptic number.

2564602979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564602979 is an equidigital number, since it uses as much as digits as its factorization.

2564602979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 2564602979 is about 50641.9093143219. The cubic root of 2564602979 is about 1368.8001605326.

The spelling of 2564602979 in words is "two billion, five hundred sixty-four million, six hundred two thousand, nine hundred seventy-nine".