2580909564 has 12 divisors (see below), whose sum is σ = 6022122344. Its totient is φ = 860303184.

The previous prime is 2580909547. The next prime is 2580909601. The reversal of 2580909564 is 4659090852.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2580909564² = 13322188355093340192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 107537887 + ... + 107537910.

Almost surely, 2^2580909564 is an apocalyptic number.

It is an amenable number.

2580909564 is an abundant number, since it is smaller than the sum of its proper divisors (3441212780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2580909564 is a wasteful number, since it uses less digits than its factorization.

2580909564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215075804 (or 215075802 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 2580909564 is about 50802.6531196944. The cubic root of 2580909564 is about 1371.6951265798.

The spelling of 2580909564 in words is "two billion, five hundred eighty million, nine hundred nine thousand, five hundred sixty-four".