21364120327735 has 16 divisors (see below), whose sum is σ = 27169610219136. Its totient is φ = 16071342028288.

The previous prime is 21364120327733. The next prime is 21364120327741. The reversal of 21364120327735 is 53772302146312.

It is a cyclic number.

It is not a de Polignac number, because 21364120327735 - 2¹ = 21364120327733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364120327733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113842144 + ... + 114029653.

It is an arithmetic number, because the mean of its divisors is an integer number (1698100638696).

Almost surely, 2^{21364120327735} is an apocalyptic number.

21364120327735 is a deficient number, since it is larger than the sum of its proper divisors (5805489891401).

21364120327735 is a wasteful number, since it uses less digits than its factorization.

21364120327735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227872922.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 21364120327735 in words is "twenty-one trillion, three hundred sixty-four billion, one hundred twenty million, three hundred twenty-seven thousand, seven hundred thirty-five".