21826298807429 has 8 divisors (see below), whose sum is σ = 21836929284000. Its totient is φ = 21815670719376.

The previous prime is 21826298807363. The next prime is 21826298807459. The reversal of 21826298807429 is 92470889262812.

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-21826298807429 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 (21826298807459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17821394 + ... + 19006700.

It is an arithmetic number, because the mean of its divisors is an integer number (2729616160500).

Almost surely, 2^{21826298807429} is an apocalyptic number.

It is an amenable number.

21826298807429 is a deficient number, since it is larger than the sum of its proper divisors (10630476571).

21826298807429 is a wasteful number, since it uses less digits than its factorization.

21826298807429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194259.

The product of its (nonzero) digits is 111476736, while the sum is 68.

The spelling of 21826298807429 in words is "twenty-one trillion, eight hundred twenty-six billion, two hundred ninety-eight million, eight hundred seven thousand, four hundred twenty-nine".