63195132509 has 2 divisors, whose sum is σ = 63195132510. Its totient is φ = 63195132508.

The previous prime is 63195132493. The next prime is 63195132527. The reversal of 63195132509 is 90523159136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49438188409 + 13756944100 = 222347^2 + 117290^2 .

It is a cyclic number.

It is not a de Polignac number, because 63195132509 - 2⁴ = 63195132493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63195132509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63195132569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31597566254 + 31597566255.

It is an arithmetic number, because the mean of its divisors is an integer number (31597566255).

Almost surely, 2^63195132509 is an apocalyptic number.

It is an amenable number.

63195132509 is a deficient number, since it is larger than the sum of its proper divisors (1).

63195132509 is an equidigital number, since it uses as much as digits as its factorization.

63195132509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700, while the sum is 44.

The spelling of 63195132509 in words is "sixty-three billion, one hundred ninety-five million, one hundred thirty-two thousand, five hundred nine".