2479719813 has 4 divisors (see below), whose sum is σ = 3306293088. Its totient is φ = 1653146540.

The previous prime is 2479719797. The next prime is 2479719821. The reversal of 2479719813 is 3189179742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2479719813 - 2⁴ = 2479719797 is a prime.

It is a super-2 number, since 2×2479719813² = 12298020701969509938, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2479719833) 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, 413286633 + ... + 413286638.

It is an arithmetic number, because the mean of its divisors is an integer number (826573272).

Almost surely, 2^2479719813 is an apocalyptic number.

It is an amenable number.

2479719813 is a deficient number, since it is larger than the sum of its proper divisors (826573275).

2479719813 is an equidigital number, since it uses as much as digits as its factorization.

2479719813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826573274.

The product of its digits is 762048, while the sum is 51.

The square root of 2479719813 is about 49796.7851673178. The cubic root of 2479719813 is about 1353.5289133015.

The spelling of 2479719813 in words is "two billion, four hundred seventy-nine million, seven hundred nineteen thousand, eight hundred thirteen".