21826460023 has 2 divisors, whose sum is σ = 21826460024. Its totient is φ = 21826460022.

The previous prime is 21826460017. The next prime is 21826460093. The reversal of 21826460023 is 32006462812.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21826460023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21826460093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10913230011 + 10913230012.

It is an arithmetic number, because the mean of its divisors is an integer number (10913230012).

Almost surely, 2^21826460023 is an apocalyptic number.

21826460023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21826460023 is an equidigital number, since it uses as much as digits as its factorization.

21826460023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 21826460023 in words is "twenty-one billion, eight hundred twenty-six million, four hundred sixty thousand, twenty-three".