20426196633 has 4 divisors (see below), whose sum is σ = 27234928848. Its totient is φ = 13617464420.

The previous prime is 20426196631. The next prime is 20426196641. The reversal of 20426196633 is 33669162402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20426196633 - 2¹ = 20426196631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20426196631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404366103 + ... + 3404366108.

It is an arithmetic number, because the mean of its divisors is an integer number (6808732212).

Almost surely, 2^20426196633 is an apocalyptic number.

It is an amenable number.

20426196633 is a deficient number, since it is larger than the sum of its proper divisors (6808732215).

20426196633 is an equidigital number, since it uses as much as digits as its factorization.

20426196633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808732214.

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 20426196633 in words is "twenty billion, four hundred twenty-six million, one hundred ninety-six thousand, six hundred thirty-three".