20026475591 has 2 divisors, whose sum is σ = 20026475592. Its totient is φ = 20026475590.

The previous prime is 20026475501. The next prime is 20026475611. The reversal of 20026475591 is 19557462002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20026475591 - 2¹⁸ = 20026213447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20026475501) 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 as a sum of consecutive naturals, namely, 10013237795 + 10013237796.

It is an arithmetic number, because the mean of its divisors is an integer number (10013237796).

Almost surely, 2^20026475591 is an apocalyptic number.

20026475591 is a deficient number, since it is larger than the sum of its proper divisors (1).

20026475591 is an equidigital number, since it uses as much as digits as its factorization.

20026475591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 20026475591 in words is "twenty billion, twenty-six million, four hundred seventy-five thousand, five hundred ninety-one".