21034342415199 has 16 divisors (see below), whose sum is σ = 28100631453408. Its totient is φ = 13995482209152.

The previous prime is 21034342415197. The next prime is 21034342415357. The reversal of 21034342415199 is 99151424343012.

It is not a de Polignac number, because 21034342415199 - 2¹ = 21034342415197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21034342415197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9486169 + ... + 11491565.

It is an arithmetic number, because the mean of its divisors is an integer number (1756289465838).

Almost surely, 2^{21034342415199} is an apocalyptic number.

21034342415199 is a deficient number, since it is larger than the sum of its proper divisors (7066289038209).

21034342415199 is a wasteful number, since it uses less digits than its factorization.

21034342415199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012234.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 21034342415199 in words is "twenty-one trillion, thirty-four billion, three hundred forty-two million, four hundred fifteen thousand, one hundred ninety-nine".