2564164870 has 16 divisors (see below), whose sum is σ = 4616786160. Its totient is φ = 1025379424.

The previous prime is 2564164847. The next prime is 2564164879. The reversal of 2564164870 is 784614652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564164879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3864 + ... + 71716.

It is an arithmetic number, because the mean of its divisors is an integer number (288549135).

Almost surely, 2^2564164870 is an apocalyptic number.

2564164870 is a deficient number, since it is larger than the sum of its proper divisors (2052621290).

2564164870 is a wasteful number, since it uses less digits than its factorization.

2564164870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71639.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 2564164870 is about 50637.5835718886. The cubic root of 2564164870 is about 1368.7222124284.

The spelling of 2564164870 in words is "two billion, five hundred sixty-four million, one hundred sixty-four thousand, eight hundred seventy".