63486553189 has 2 divisors, whose sum is σ = 63486553190. Its totient is φ = 63486553188.

The previous prime is 63486553139. The next prime is 63486553217. The reversal of 63486553189 is 98135568436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59223116164 + 4263437025 = 243358^2 + 65295^2 .

It is a cyclic number.

It is not a de Polignac number, because 63486553189 - 2²¹ = 63484456037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63486553139) 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, 31743276594 + 31743276595.

It is an arithmetic number, because the mean of its divisors is an integer number (31743276595).

Almost surely, 2^63486553189 is an apocalyptic number.

It is an amenable number.

63486553189 is a deficient number, since it is larger than the sum of its proper divisors (1).

63486553189 is an equidigital number, since it uses as much as digits as its factorization.

63486553189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18662400, while the sum is 58.

The spelling of 63486553189 in words is "sixty-three billion, four hundred eighty-six million, five hundred fifty-three thousand, one hundred eighty-nine".