22485421709 has 2 divisors, whose sum is σ = 22485421710. Its totient is φ = 22485421708.

The previous prime is 22485421691. The next prime is 22485421723. The reversal of 22485421709 is 90712458422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11280564100 + 11204857609 = 106210^2 + 105853^2 .

It is a cyclic number.

It is not a de Polignac number, because 22485421709 - 2²⁴ = 22468644493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22485421709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22485421789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11242710854 + 11242710855.

It is an arithmetic number, because the mean of its divisors is an integer number (11242710855).

Almost surely, 2^22485421709 is an apocalyptic number.

It is an amenable number.

22485421709 is a deficient number, since it is larger than the sum of its proper divisors (1).

22485421709 is an equidigital number, since it uses as much as digits as its factorization.

22485421709 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 44.

The spelling of 22485421709 in words is "twenty-two billion, four hundred eighty-five million, four hundred twenty-one thousand, seven hundred nine".