2423979919 has 4 divisors (see below), whose sum is σ = 2424098344. Its totient is φ = 2423861496.

The previous prime is 2423979911. The next prime is 2423979937. The reversal of 2423979919 is 9199793242.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9199793242 = 2 ⋅4599896621.

It is a cyclic number.

It is not a de Polignac number, because 2423979919 - 2³ = 2423979911 is a prime.

It is a super-2 number, since 2×2423979919² = 11751357295430493122, which contains 22 as substring.

It is a deceptive number, since it divides R_2423979918.

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 2423979919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2423979911) 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, 19737 + ... + 72370.

It is an arithmetic number, because the mean of its divisors is an integer number (606024586).

Almost surely, 2^2423979919 is an apocalyptic number.

2423979919 is the 26317-th nonagonal number.

2423979919 is a deficient number, since it is larger than the sum of its proper divisors (118425).

2423979919 is an equidigital number, since it uses as much as digits as its factorization.

2423979919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118424.

The product of its digits is 2204496, while the sum is 55.

The square root of 2423979919 is about 49233.9305662264. The cubic root of 2423979919 is about 1343.3102828537.

The spelling of 2423979919 in words is "two billion, four hundred twenty-three million, nine hundred seventy-nine thousand, nine hundred nineteen".