21034342415198 has 16 divisors (see below), whose sum is σ = 36059568079200. Its totient is φ = 9014544336096.

The previous prime is 21034342415197. The next prime is 21034342415357. The reversal of 21034342415198 is 89151424343012.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13733561 + ... + 15188132.

It is an arithmetic number, because the mean of its divisors is an integer number (2253723004950).

Almost surely, 2^{21034342415198} is an apocalyptic number.

21034342415198 is a deficient number, since it is larger than the sum of its proper divisors (15025225664002).

21034342415198 is a wasteful number, since it uses less digits than its factorization.

21034342415198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28973651.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 21034342415198 in words is "twenty-one trillion, thirty-four billion, three hundred forty-two million, four hundred fifteen thousand, one hundred ninety-eight".