2641645144 has 16 divisors (see below), whose sum is σ = 5068273320. Its totient is φ = 1290105600.

The previous prime is 2641645141. The next prime is 2641645163. The reversal of 2641645144 is 4415461462.

It is a happy number.

2641645144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641645141) 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, 3839257 + ... + 3839944.

Almost surely, 2^2641645144 is an apocalyptic number.

It is an amenable number.

2641645144 is a deficient number, since it is larger than the sum of its proper divisors (2426628176).

2641645144 is a wasteful number, since it uses less digits than its factorization.

2641645144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679250 (or 7679246 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 2641645144 is about 51396.9371071857. The cubic root of 2641645144 is about 1382.3716732910.

The spelling of 2641645144 in words is "two billion, six hundred forty-one million, six hundred forty-five thousand, one hundred forty-four".