2564716783 has 2 divisors, whose sum is σ = 2564716784. Its totient is φ = 2564716782.

The previous prime is 2564716771. The next prime is 2564716807. The reversal of 2564716783 is 3876174652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2564716783 - 2¹³ = 2564708591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564713783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282358391 + 1282358392.

It is an arithmetic number, because the mean of its divisors is an integer number (1282358392).

Almost surely, 2^2564716783 is an apocalyptic number.

2564716783 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564716783 is an equidigital number, since it uses as much as digits as its factorization.

2564716783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 49.

The square root of 2564716783 is about 50643.0329166807. The cubic root of 2564716783 is about 1368.8204070230.

The spelling of 2564716783 in words is "two billion, five hundred sixty-four million, seven hundred sixteen thousand, seven hundred eighty-three".