2579961887 has 8 divisors (see below), whose sum is σ = 2755021440. Its totient is φ = 2410642080.

The previous prime is 2579961833. The next prime is 2579961889. The reversal of 2579961887 is 7881699752.

2579961887 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 2579961887 - 2⁶ = 2579961823 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 (2579961889) 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, 1434008 + ... + 1435805.

It is an arithmetic number, because the mean of its divisors is an integer number (344377680).

Almost surely, 2^2579961887 is an apocalyptic number.

2579961887 is a deficient number, since it is larger than the sum of its proper divisors (175059553).

2579961887 is a wasteful number, since it uses less digits than its factorization.

2579961887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869873.

The product of its digits is 15240960, while the sum is 62.

The square root of 2579961887 is about 50793.3252209382. The cubic root of 2579961887 is about 1371.5272163879.

The spelling of 2579961887 in words is "two billion, five hundred seventy-nine million, nine hundred sixty-one thousand, eight hundred eighty-seven".