2580864197 has 4 divisors (see below), whose sum is σ = 2732679756. Its totient is φ = 2429048640.

The previous prime is 2580864157. The next prime is 2580864227. The reversal of 2580864197 is 7914680852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1546534276 + 1034329921 = 39326^2 + 32161^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580864197 - 2⁶ = 2580864133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580864157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75907754 + ... + 75907787.

It is an arithmetic number, because the mean of its divisors is an integer number (683169939).

Almost surely, 2^2580864197 is an apocalyptic number.

It is an amenable number.

2580864197 is a deficient number, since it is larger than the sum of its proper divisors (151815559).

2580864197 is a wasteful number, since it uses less digits than its factorization.

2580864197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151815558.

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 2580864197 is about 50802.2066154611. The cubic root of 2580864197 is about 1371.6870893541.

The spelling of 2580864197 in words is "two billion, five hundred eighty million, eight hundred sixty-four thousand, one hundred ninety-seven".