2544156641 has 32 divisors (see below), whose sum is σ = 3022790400. Its totient is φ = 2119403520.

The previous prime is 2544156617. The next prime is 2544156731. The reversal of 2544156641 is 1466514452.

It is a happy number.

It is not a de Polignac number, because 2544156641 - 2¹⁴ = 2544140257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2544156595 and 2544156604.

It is not an unprimeable number, because it can be changed into a prime (2544152641) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 532220 + ... + 536978.

It is an arithmetic number, because the mean of its divisors is an integer number (94462200).

Almost surely, 2^2544156641 is an apocalyptic number.

It is an amenable number.

2544156641 is a deficient number, since it is larger than the sum of its proper divisors (478633759).

2544156641 is a wasteful number, since it uses less digits than its factorization.

2544156641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889.

The product of its digits is 115200, while the sum is 38.

The square root of 2544156641 is about 50439.6336326901. The cubic root of 2544156641 is about 1365.1528568863.

The spelling of 2544156641 in words is "two billion, five hundred forty-four million, one hundred fifty-six thousand, six hundred forty-one".