21734053624079 has 2 divisors, whose sum is σ = 21734053624080. Its totient is φ = 21734053624078.

The previous prime is 21734053624061. The next prime is 21734053624099. The reversal of 21734053624079 is 97042635043712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21734053624079 - 2⁸ = 21734053623823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21734053624079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21734053624099) 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 as a sum of consecutive naturals, namely, 10867026812039 + 10867026812040.

It is an arithmetic number, because the mean of its divisors is an integer number (10867026812040).

Almost surely, 2^{21734053624079} is an apocalyptic number.

21734053624079 is a deficient number, since it is larger than the sum of its proper divisors (1).

21734053624079 is an equidigital number, since it uses as much as digits as its factorization.

21734053624079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 21734053624079 in words is "twenty-one trillion, seven hundred thirty-four billion, fifty-three million, six hundred twenty-four thousand, seventy-nine".