20486222573 has 2 divisors, whose sum is σ = 20486222574. Its totient is φ = 20486222572.

The previous prime is 20486222569. The next prime is 20486222629. The reversal of 20486222573 is 37522268402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18500896324 + 1985326249 = 136018^2 + 44557^2 .

It is a cyclic number.

It is not a de Polignac number, because 20486222573 - 2² = 20486222569 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20486222573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20486222513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10243111286 + 10243111287.

It is an arithmetic number, because the mean of its divisors is an integer number (10243111287).

Almost surely, 2^20486222573 is an apocalyptic number.

It is an amenable number.

20486222573 is a deficient number, since it is larger than the sum of its proper divisors (1).

20486222573 is an equidigital number, since it uses as much as digits as its factorization.

20486222573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 20486222573 in words is "twenty billion, four hundred eighty-six million, two hundred twenty-two thousand, five hundred seventy-three".