20823648895 has 8 divisors (see below), whose sum is σ = 28558147104. Its totient is φ = 14279073504.

The previous prime is 20823648889. The next prime is 20823648907. The reversal of 20823648895 is 59884632802.

It is a happy number.

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 20823648895 - 2⁵ = 20823648863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297480664 + ... + 297480733.

It is an arithmetic number, because the mean of its divisors is an integer number (3569768388).

Almost surely, 2^20823648895 is an apocalyptic number.

20823648895 is a deficient number, since it is larger than the sum of its proper divisors (7734498209).

20823648895 is an equidigital number, since it uses as much as digits as its factorization.

20823648895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594961409.

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 20823648895 in words is "twenty billion, eight hundred twenty-three million, six hundred forty-eight thousand, eight hundred ninety-five".