2564373723 has 12 divisors (see below), whose sum is σ = 3533022504. Its totient is φ = 1654432800.

The previous prime is 2564373709. The next prime is 2564373731. The reversal of 2564373723 is 3273734652.

It is not a de Polignac number, because 2564373723 - 2²¹ = 2562276571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2564378723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441858 + ... + 447623.

It is an arithmetic number, because the mean of its divisors is an integer number (294418542).

Almost surely, 2^2564373723 is an apocalyptic number.

2564373723 is a deficient number, since it is larger than the sum of its proper divisors (968648781).

2564373723 is an equidigital number, since it uses as much as digits as its factorization.

2564373723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889546 (or 889515 counting only the distinct ones).

The product of its digits is 635040, while the sum is 42.

The square root of 2564373723 is about 50639.6457629790. The cubic root of 2564373723 is about 1368.7593725427.

The spelling of 2564373723 in words is "two billion, five hundred sixty-four million, three hundred seventy-three thousand, seven hundred twenty-three".