2494544639 has 4 divisors (see below), whose sum is σ = 2496879240. Its totient is φ = 2492210040.

The previous prime is 2494544629. The next prime is 2494544659. The reversal of 2494544639 is 9364454942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2494544639 - 2⁸ = 2494544383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2494544629) 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, 1165697 + ... + 1167834.

It is an arithmetic number, because the mean of its divisors is an integer number (624219810).

Almost surely, 2^2494544639 is an apocalyptic number.

2494544639 is a deficient number, since it is larger than the sum of its proper divisors (2334601).

2494544639 is a wasteful number, since it uses less digits than its factorization.

2494544639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334600.

The product of its digits is 3732480, while the sum is 50.

The square root of 2494544639 is about 49945.4165965206. The cubic root of 2494544639 is about 1356.2208808149.

The spelling of 2494544639 in words is "two billion, four hundred ninety-four million, five hundred forty-four thousand, six hundred thirty-nine".