21364240533703 has 8 divisors (see below), whose sum is σ = 21393378238320. Its totient is φ = 21335113712640.

The previous prime is 21364240533677. The next prime is 21364240533737. The reversal of 21364240533703 is 30733504246312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21364240533703 is a prime.

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 21364240533703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364240533793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211628 + ... + 6648046.

It is an arithmetic number, because the mean of its divisors is an integer number (2674172279790).

Almost surely, 2^{21364240533703} is an apocalyptic number.

21364240533703 is a deficient number, since it is larger than the sum of its proper divisors (29137704617).

21364240533703 is an equidigital number, since it uses as much as digits as its factorization.

21364240533703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441777.

The product of its (nonzero) digits is 1088640, while the sum is 43.

The spelling of 21364240533703 in words is "twenty-one trillion, three hundred sixty-four billion, two hundred forty million, five hundred thirty-three thousand, seven hundred three".