63131263829 has 2 divisors, whose sum is σ = 63131263830. Its totient is φ = 63131263828.

The previous prime is 63131263747. The next prime is 63131263847. The reversal of 63131263829 is 92836213136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60111761329 + 3019502500 = 245177^2 + 54950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63131263829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63131263829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63131263849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31565631914 + 31565631915.

It is an arithmetic number, because the mean of its divisors is an integer number (31565631915).

Almost surely, 2^63131263829 is an apocalyptic number.

It is an amenable number.

63131263829 is a deficient number, since it is larger than the sum of its proper divisors (1).

63131263829 is an equidigital number, since it uses as much as digits as its factorization.

63131263829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The spelling of 63131263829 in words is "sixty-three billion, one hundred thirty-one million, two hundred sixty-three thousand, eight hundred twenty-nine".