2566436874 has 8 divisors (see below), whose sum is σ = 5132873760. Its totient is φ = 855478956.

The previous prime is 2566436863. The next prime is 2566436879. The reversal of 2566436874 is 4786346652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2566436874 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2566436879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213869734 + ... + 213869745.

It is an arithmetic number, because the mean of its divisors is an integer number (641609220).

Almost surely, 2^2566436874 is an apocalyptic number.

2566436874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2566436874 is a wasteful number, since it uses less digits than its factorization.

2566436874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427739484.

The product of its digits is 5806080, while the sum is 51.

The square root of 2566436874 is about 50660.0125740213. The cubic root of 2566436874 is about 1369.1263497698.

The spelling of 2566436874 in words is "two billion, five hundred sixty-six million, four hundred thirty-six thousand, eight hundred seventy-four".