2499813019 has 4 divisors (see below), whose sum is σ = 2727068760. Its totient is φ = 2272557280.

The previous prime is 2499813011. The next prime is 2499813031. The reversal of 2499813019 is 9103189942.

It is a happy number.

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 2499813019 - 2³ = 2499813011 is a prime.

It is a super-2 number, since 2×2499813019² = 12498130259923788722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2499813019.

It is not an unprimeable number, because it can be changed into a prime (2499813011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113627854 + ... + 113627875.

It is an arithmetic number, because the mean of its divisors is an integer number (681767190).

Almost surely, 2^2499813019 is an apocalyptic number.

2499813019 is a deficient number, since it is larger than the sum of its proper divisors (227255741).

2499813019 is a wasteful number, since it uses less digits than its factorization.

2499813019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227255740.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 2499813019 is about 49998.1301550368. The cubic root of 2499813019 is about 1357.1749711525.

It can be divided in two parts, 2499 and 813019, that added together give a palindrome (815518).

The spelling of 2499813019 in words is "two billion, four hundred ninety-nine million, eight hundred thirteen thousand, nineteen".