13845840999 has 32 divisors (see below), whose sum is σ = 19381166784. Its totient is φ = 8783723520.

The previous prime is 13845840977. The next prime is 13845841007. The reversal of 13845840999 is 99904854831.

13845840999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13845840999 - 2¹⁹ = 13845316711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13845840919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1121649 + ... + 1133925.

It is an arithmetic number, because the mean of its divisors is an integer number (605661462).

Almost surely, 2^13845840999 is an apocalyptic number.

13845840999 is a deficient number, since it is larger than the sum of its proper divisors (5535325785).

13845840999 is a wasteful number, since it uses less digits than its factorization.

13845840999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 13845840999 in words is "thirteen billion, eight hundred forty-five million, eight hundred forty thousand, nine hundred ninety-nine".