63763257641 has 2 divisors, whose sum is σ = 63763257642. Its totient is φ = 63763257640.

The previous prime is 63763257553. The next prime is 63763257653. The reversal of 63763257641 is 14675236736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42643902016 + 21119355625 = 206504^2 + 145325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63763257641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63763257641.

It is not a weakly prime, because it can be changed into another prime (63763257661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31881628820 + 31881628821.

It is an arithmetic number, because the mean of its divisors is an integer number (31881628821).

Almost surely, 2^63763257641 is an apocalyptic number.

It is an amenable number.

63763257641 is a deficient number, since it is larger than the sum of its proper divisors (1).

63763257641 is an equidigital number, since it uses as much as digits as its factorization.

63763257641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 50.

The spelling of 63763257641 in words is "sixty-three billion, seven hundred sixty-three million, two hundred fifty-seven thousand, six hundred forty-one".