21996285744023 has 8 divisors (see below), whose sum is σ = 22122398881440. Its totient is φ = 21870529363360.

The previous prime is 21996285744007. The next prime is 21996285744029. The reversal of 21996285744023 is 32044758269912.

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

It is a cyclic number.

It is not a de Polignac number, because 21996285744023 - 2⁴ = 21996285744007 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 (21996285744029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89065523 + ... + 89312148.

It is an arithmetic number, because the mean of its divisors is an integer number (2765299860180).

It is a 2-persistent number, because it is pandigital, and so is 2⋅21996285744023 = 43992571488046, but 3⋅21996285744023 = 65988857232069 is not.

Almost surely, 2^{21996285744023} is an apocalyptic number.

21996285744023 is a deficient number, since it is larger than the sum of its proper divisors (126113137417).

21996285744023 is a wasteful number, since it uses less digits than its factorization.

21996285744023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178378377.

The product of its (nonzero) digits is 52254720, while the sum is 62.

The spelling of 21996285744023 in words is "twenty-one trillion, nine hundred ninety-six billion, two hundred eighty-five million, seven hundred forty-four thousand, twenty-three".