2564462461 has 16 divisors (see below), whose sum is σ = 2964755520. Its totient is φ = 2192270080.

The previous prime is 2564462447. The next prime is 2564462477. The reversal of 2564462461 is 1642644652.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2564462461 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 (2564462401) 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 15 ways as a sum of consecutive naturals, for example, 233430 + ... + 244168.

It is an arithmetic number, because the mean of its divisors is an integer number (185297220).

Almost surely, 2^2564462461 is an apocalyptic number.

It is an amenable number.

2564462461 is a deficient number, since it is larger than the sum of its proper divisors (400293059).

2564462461 is a wasteful number, since it uses less digits than its factorization.

2564462461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12044.

The product of its digits is 276480, while the sum is 40.

The square root of 2564462461 is about 50640.5219266153. The cubic root of 2564462461 is about 1368.7751606170.

The spelling of 2564462461 in words is "two billion, five hundred sixty-four million, four hundred sixty-two thousand, four hundred sixty-one".