2489644503 has 12 divisors (see below), whose sum is σ = 3712158528. Its totient is φ = 1606222080.

The previous prime is 2489644477. The next prime is 2489644523. The reversal of 2489644503 is 3054469842.

2489644503 is a `hidden beast` number, since 2 + 4 + 89 + 64 + 4 + 503 = 666.

It is not a de Polignac number, because 2489644503 - 2⁵ = 2489644471 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489644523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4461450 + ... + 4462007.

It is an arithmetic number, because the mean of its divisors is an integer number (309346544).

Almost surely, 2^2489644503 is an apocalyptic number.

2489644503 is a deficient number, since it is larger than the sum of its proper divisors (1222514025).

2489644503 is a wasteful number, since it uses less digits than its factorization.

2489644503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8923494 (or 8923491 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 2489644503 is about 49896.3375710082. The cubic root of 2489644503 is about 1355.3322720130.

The spelling of 2489644503 in words is "two billion, four hundred eighty-nine million, six hundred forty-four thousand, five hundred three".