21735336223459 has 2 divisors, whose sum is σ = 21735336223460. Its totient is φ = 21735336223458.

The previous prime is 21735336223417. The next prime is 21735336223553. The reversal of 21735336223459 is 95432263353712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21735336223459 - 2¹⁵ = 21735336190691 is a prime.

It is not a weakly prime, because it can be changed into another prime (21735336203459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10867668111729 + 10867668111730.

It is an arithmetic number, because the mean of its divisors is an integer number (10867668111730).

Almost surely, 2^{21735336223459} is an apocalyptic number.

21735336223459 is a deficient number, since it is larger than the sum of its proper divisors (1).

21735336223459 is an equidigital number, since it uses as much as digits as its factorization.

21735336223459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24494400, while the sum is 55.

The spelling of 21735336223459 in words is "twenty-one trillion, seven hundred thirty-five billion, three hundred thirty-six million, two hundred twenty-three thousand, four hundred fifty-nine".