13999044587 has 16 divisors (see below), whose sum is σ = 16260393600. Its totient is φ = 11910848640.

The previous prime is 13999044583. The next prime is 13999044607. The reversal of 13999044587 is 78544099931.

It is a cyclic number.

It is not a de Polignac number, because 13999044587 - 2² = 13999044583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13999044583) 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 15 ways as a sum of consecutive naturals, for example, 175637 + ... + 242582.

It is an arithmetic number, because the mean of its divisors is an integer number (1016274600).

Almost surely, 2^13999044587 is an apocalyptic number.

13999044587 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13999044587 is a deficient number, since it is larger than the sum of its proper divisors (2261349013).

13999044587 is a wasteful number, since it uses less digits than its factorization.

13999044587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418426.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 13999044587 in words is "thirteen billion, nine hundred ninety-nine million, forty-four thousand, five hundred eighty-seven".