13599728499 has 8 divisors (see below), whose sum is σ = 20723395840. Its totient is φ = 7771273416.

The previous prime is 13599728491. The next prime is 13599728501. The reversal of 13599728499 is 99482799531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13599728499 - 2³ = 13599728491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13599728491) 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 7 ways as a sum of consecutive naturals, for example, 323803039 + ... + 323803080.

It is an arithmetic number, because the mean of its divisors is an integer number (2590424480).

Almost surely, 2^13599728499 is an apocalyptic number.

13599728499 is a deficient number, since it is larger than the sum of its proper divisors (7123667341).

13599728499 is an equidigital number, since it uses as much as digits as its factorization.

13599728499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647606129.

The product of its digits is 44089920, while the sum is 66.

The spelling of 13599728499 in words is "thirteen billion, five hundred ninety-nine million, seven hundred twenty-eight thousand, four hundred ninety-nine".