2489869519 has 4 divisors (see below), whose sum is σ = 2490550344. Its totient is φ = 2489188696.

The previous prime is 2489869511. The next prime is 2489869523. The reversal of 2489869519 is 9159689842.

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 2489869519 - 2³ = 2489869511 is a prime.

It is a super-2 number, since 2×2489869519² = 12398900443290582722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489869511) 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, 334897 + ... + 342250.

It is an arithmetic number, because the mean of its divisors is an integer number (622637586).

Almost surely, 2^2489869519 is an apocalyptic number.

2489869519 is a deficient number, since it is larger than the sum of its proper divisors (680825).

2489869519 is an equidigital number, since it uses as much as digits as its factorization.

2489869519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680824.

The product of its digits is 11197440, while the sum is 61.

The square root of 2489869519 is about 49898.5923548951. The cubic root of 2489869519 is about 1355.3731027767.

The spelling of 2489869519 in words is "two billion, four hundred eighty-nine million, eight hundred sixty-nine thousand, five hundred nineteen".