11924279999 has 4 divisors (see below), whose sum is σ = 11924634936. Its totient is φ = 11923925064.

The previous prime is 11924279981. The next prime is 11924280007. The reversal of 11924279999 is 99997242911.

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 11924279999 - 2¹² = 11924275903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11924279099) 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, 121109 + ... + 196254.

It is an arithmetic number, because the mean of its divisors is an integer number (2981158734).

Almost surely, 2^11924279999 is an apocalyptic number.

11924279999 is a deficient number, since it is larger than the sum of its proper divisors (354937).

11924279999 is an equidigital number, since it uses as much as digits as its factorization.

11924279999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354936.

The product of its digits is 6613488, while the sum is 62.

The spelling of 11924279999 in words is "eleven billion, nine hundred twenty-four million, two hundred seventy-nine thousand, nine hundred ninety-nine".