2544869656 has 32 divisors (see below), whose sum is σ = 5545728000. Its totient is φ = 1072171296.

The previous prime is 2544869651. The next prime is 2544869693. The reversal of 2544869656 is 6569684452.

2544869656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2544869597 and 2544869606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544869651) 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, 381816 + ... + 388423.

It is an arithmetic number, because the mean of its divisors is an integer number (173304000).

Almost surely, 2^2544869656 is an apocalyptic number.

It is an amenable number.

2544869656 is an abundant number, since it is smaller than the sum of its proper divisors (3000858344).

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

2544869656 is a wasteful number, since it uses less digits than its factorization.

2544869656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770311 (or 770307 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 55.

The square root of 2544869656 is about 50446.7011409071. The cubic root of 2544869656 is about 1365.2803757048.

The spelling of 2544869656 in words is "two billion, five hundred forty-four million, eight hundred sixty-nine thousand, six hundred fifty-six".