63559247149 has 2 divisors, whose sum is σ = 63559247150. Its totient is φ = 63559247148.

The previous prime is 63559247137. The next prime is 63559247153. The reversal of 63559247149 is 94174295536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43631689924 + 19927557225 = 208882^2 + 141165^2 .

It is a cyclic number.

It is not a de Polignac number, because 63559247149 - 2²³ = 63550858541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63559247149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63559247179) 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, 31779623574 + 31779623575.

It is an arithmetic number, because the mean of its divisors is an integer number (31779623575).

Almost surely, 2^63559247149 is an apocalyptic number.

It is an amenable number.

63559247149 is a deficient number, since it is larger than the sum of its proper divisors (1).

63559247149 is an equidigital number, since it uses as much as digits as its factorization.

63559247149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 55.

The spelling of 63559247149 in words is "sixty-three billion, five hundred fifty-nine million, two hundred forty-seven thousand, one hundred forty-nine".