20826923201 has 6 divisors (see below), whose sum is σ = 24227237250. Its totient is φ = 17851648416.

The previous prime is 20826923189. The next prime is 20826923203. The reversal of 20826923201 is 10232962802.

It can be written as a sum of positive squares in only one way, i.e., 18571148176 + 2255775025 = 136276^2 + 47495^2 .

It is not a de Polignac number, because 20826923201 - 2⁶ = 20826923137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20826923203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212519576 + ... + 212519673.

It is an arithmetic number, because the mean of its divisors is an integer number (4037872875).

Almost surely, 2^20826923201 is an apocalyptic number.

It is an amenable number.

20826923201 is a deficient number, since it is larger than the sum of its proper divisors (3400314049).

20826923201 is an equidigital number, since it uses as much as digits as its factorization.

20826923201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425039263 (or 425039256 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 20826923201 in words is "twenty billion, eight hundred twenty-six million, nine hundred twenty-three thousand, two hundred one".