24139211819 has 4 divisors (see below), whose sum is σ = 24156949560. Its totient is φ = 24121474080.

The previous prime is 24139211807. The next prime is 24139211821. The reversal of 24139211819 is 91811293142.

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 24139211819 - 2²⁰ = 24138163243 is a prime.

It is a super-2 number, since 2×24139211819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24139211839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8866829 + ... + 8869550.

It is an arithmetic number, because the mean of its divisors is an integer number (6039237390).

Almost surely, 2^24139211819 is an apocalyptic number.

24139211819 is a deficient number, since it is larger than the sum of its proper divisors (17737741).

24139211819 is a wasteful number, since it uses less digits than its factorization.

24139211819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17737740.

The product of its digits is 31104, while the sum is 41.

The spelling of 24139211819 in words is "twenty-four billion, one hundred thirty-nine million, two hundred eleven thousand, eight hundred nineteen".