21726146106335 has 16 divisors (see below), whose sum is σ = 29358968113152. Its totient is φ = 15291129223200.

The previous prime is 21726146106307. The next prime is 21726146106337. The reversal of 21726146106335 is 53360164162712.

It is not a de Polignac number, because 21726146106335 - 2¹⁸ = 21726145844191 is a prime.

It is a super-2 number, since 2×21726146106335² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21726146106335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21726146106337) 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, 6371302139 + ... + 6371305548.

It is an arithmetic number, because the mean of its divisors is an integer number (1834935507072).

Almost surely, 2^{21726146106335} is an apocalyptic number.

21726146106335 is a deficient number, since it is larger than the sum of its proper divisors (7632822006817).

21726146106335 is a wasteful number, since it uses less digits than its factorization.

21726146106335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12742607734.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 21726146106335 in words is "twenty-one trillion, seven hundred twenty-six billion, one hundred forty-six million, one hundred six thousand, three hundred thirty-five".