20180444797 has 2 divisors, whose sum is σ = 20180444798. Its totient is φ = 20180444796.

The previous prime is 20180444761. The next prime is 20180444833. The reversal of 20180444797 is 79744408102.

It is a balanced prime because it is at equal distance from previous prime (20180444761) and next prime (20180444833).

It can be written as a sum of positive squares in only one way, i.e., 18708494841 + 1471949956 = 136779^2 + 38366^2 .

It is a cyclic number.

It is not a de Polignac number, because 20180444797 - 2¹¹ = 20180442749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20180444717) 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, 10090222398 + 10090222399.

It is an arithmetic number, because the mean of its divisors is an integer number (10090222399).

Almost surely, 2^20180444797 is an apocalyptic number.

It is an amenable number.

20180444797 is a deficient number, since it is larger than the sum of its proper divisors (1).

20180444797 is an equidigital number, since it uses as much as digits as its factorization.

20180444797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 20180444797 in words is "twenty billion, one hundred eighty million, four hundred forty-four thousand, seven hundred ninety-seven".