2564260766 has 8 divisors (see below), whose sum is σ = 3886044960. Its totient is φ = 1268912448.

The previous prime is 2564260717. The next prime is 2564260771. The reversal of 2564260766 is 6670624652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 6608726 + ... + 6609113.

It is an arithmetic number, because the mean of its divisors is an integer number (485755620).

Almost surely, 2^2564260766 is an apocalyptic number.

2564260766 is a deficient number, since it is larger than the sum of its proper divisors (1321784194).

2564260766 is a wasteful number, since it uses less digits than its factorization.

2564260766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13217938.

The product of its (nonzero) digits is 725760, while the sum is 44.

The square root of 2564260766 is about 50638.5304486613. The cubic root of 2564260766 is about 1368.7392749491.

The spelling of 2564260766 in words is "two billion, five hundred sixty-four million, two hundred sixty thousand, seven hundred sixty-six".