21034342415246 has 32 divisors (see below), whose sum is σ = 33586209619200. Its totient is φ = 9851415013440.

The previous prime is 21034342415197. The next prime is 21034342415357. The reversal of 21034342415246 is 64251424343012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179062151 + ... + 179179581.

It is an arithmetic number, because the mean of its divisors is an integer number (1049569050600).

Almost surely, 2^{21034342415246} is an apocalyptic number.

21034342415246 is a deficient number, since it is larger than the sum of its proper divisors (12551867203954).

21034342415246 is a wasteful number, since it uses less digits than its factorization.

21034342415246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170504.

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 21034342415246 its reverse (64251424343012), we get a palindrome (85285766758258).

The spelling of 21034342415246 in words is "twenty-one trillion, thirty-four billion, three hundred forty-two million, four hundred fifteen thousand, two hundred forty-six".