2544120045 has 96 divisors (see below), whose sum is σ = 4937137920. Its totient is φ = 1205867520.

The previous prime is 2544120043. The next prime is 2544120049. The reversal of 2544120045 is 5400214452.

2544120045 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2544120045 - 2¹ = 2544120043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544120041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1041025 + ... + 1043465.

It is an arithmetic number, because the mean of its divisors is an integer number (51428520).

Almost surely, 2^2544120045 is an apocalyptic number.

It is an amenable number.

2544120045 is a deficient number, since it is larger than the sum of its proper divisors (2393017875).

2544120045 is a wasteful number, since it uses less digits than its factorization.

2544120045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547 (or 2544 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2544120045 is about 50439.2708611058. The cubic root of 2544120045 is about 1365.1463112498.

Adding to 2544120045 its reverse (5400214452), we get a palindrome (7944334497).

The spelling of 2544120045 in words is "two billion, five hundred forty-four million, one hundred twenty thousand, forty-five".