20045224349 has 2 divisors, whose sum is σ = 20045224350. Its totient is φ = 20045224348.

The previous prime is 20045224337. The next prime is 20045224373. The reversal of 20045224349 is 94342254002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19270437124 + 774787225 = 138818^2 + 27835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20045224349 is a prime.

It is a super-2 number, since 2×20045224349² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20045224319) 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 as a sum of consecutive naturals, namely, 10022612174 + 10022612175.

It is an arithmetic number, because the mean of its divisors is an integer number (10022612175).

Almost surely, 2^20045224349 is an apocalyptic number.

It is an amenable number.

20045224349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20045224349 is an equidigital number, since it uses as much as digits as its factorization.

20045224349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 20045224349 in words is "twenty billion, forty-five million, two hundred twenty-four thousand, three hundred forty-nine".