11748439499 has 4 divisors (see below), whose sum is σ = 12366778440. Its totient is φ = 11130100560.

The previous prime is 11748439421. The next prime is 11748439517. The reversal of 11748439499 is 99493484711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99493484711 = 919 ⋅108262769.

It is a cyclic number.

It is not a de Polignac number, because 11748439499 - 2⁸ = 11748439243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11748439099) 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, 309169442 + ... + 309169479.

It is an arithmetic number, because the mean of its divisors is an integer number (3091694610).

Almost surely, 2^11748439499 is an apocalyptic number.

11748439499 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11748439499 is a deficient number, since it is larger than the sum of its proper divisors (618338941).

11748439499 is an equidigital number, since it uses as much as digits as its factorization.

11748439499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618338940.

The product of its digits is 7838208, while the sum is 59.

The spelling of 11748439499 in words is "eleven billion, seven hundred forty-eight million, four hundred thirty-nine thousand, four hundred ninety-nine".