2564748823 has 32 divisors (see below), whose sum is σ = 3277094912. Its totient is φ = 1952553600.

The previous prime is 2564748799. The next prime is 2564748841. The reversal of 2564748823 is 3288474652.

It is a de Polignac number, because none of the positive numbers 2^k-2564748823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564748863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 508090 + ... + 513112.

It is an arithmetic number, because the mean of its divisors is an integer number (102409216).

Almost surely, 2^2564748823 is an apocalyptic number.

2564748823 is a deficient number, since it is larger than the sum of its proper divisors (712346089).

2564748823 is a wasteful number, since it uses less digits than its factorization.

2564748823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255.

The product of its digits is 2580480, while the sum is 49.

The square root of 2564748823 is about 50643.3492474580. The cubic root of 2564748823 is about 1368.8261070446.

The spelling of 2564748823 in words is "two billion, five hundred sixty-four million, seven hundred forty-eight thousand, eight hundred twenty-three".