20868270423 has 64 divisors (see below), whose sum is σ = 39556242432. Its totient is φ = 9418106880.

The previous prime is 20868270419. The next prime is 20868270431. The reversal of 20868270423 is 32407286802.

It is not a de Polignac number, because 20868270423 - 2² = 20868270419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20868270463) 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 63 ways as a sum of consecutive naturals, for example, 153336 + ... + 255437.

It is an arithmetic number, because the mean of its divisors is an integer number (618066288).

Almost surely, 2^20868270423 is an apocalyptic number.

20868270423 is a deficient number, since it is larger than the sum of its proper divisors (18687972009).

20868270423 is a wasteful number, since it uses less digits than its factorization.

20868270423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408824.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 20868270423 in words is "twenty billion, eight hundred sixty-eight million, two hundred seventy thousand, four hundred twenty-three".