2564469287 has 8 divisors (see below), whose sum is σ = 2604326016. Its totient is φ = 2524659192.

The previous prime is 2564469277. The next prime is 2564469301. The reversal of 2564469287 is 7829644652.

It is a happy number.

2564469287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2564469287 - 2⁸ = 2564469031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564469277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108728 + ... + 130194.

It is an arithmetic number, because the mean of its divisors is an integer number (325540752).

Almost surely, 2^2564469287 is an apocalyptic number.

2564469287 is a deficient number, since it is larger than the sum of its proper divisors (39856729).

2564469287 is a wasteful number, since it uses less digits than its factorization.

2564469287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23317.

The product of its digits is 5806080, while the sum is 53.

The square root of 2564469287 is about 50640.5893231901. The cubic root of 2564469287 is about 1368.7763750691.

The spelling of 2564469287 in words is "two billion, five hundred sixty-four million, four hundred sixty-nine thousand, two hundred eighty-seven".