2499544945 has 32 divisors (see below), whose sum is σ = 3153427200. Its totient is φ = 1899507456.

The previous prime is 2499544939. The next prime is 2499544961. The reversal of 2499544945 is 5494459942.

2499544945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2499544945 - 2⁹ = 2499544433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2638962 + ... + 2639908.

It is an arithmetic number, because the mean of its divisors is an integer number (98544600).

Almost surely, 2^2499544945 is an apocalyptic number.

It is an amenable number.

2499544945 is a deficient number, since it is larger than the sum of its proper divisors (653882255).

2499544945 is a wasteful number, since it uses less digits than its factorization.

2499544945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257.

The product of its digits is 9331200, while the sum is 55.

The square root of 2499544945 is about 49995.4492429061. The cubic root of 2499544945 is about 1357.1264560134.

The spelling of 2499544945 in words is "two billion, four hundred ninety-nine million, five hundred forty-four thousand, nine hundred forty-five".