63997642685241 has 12 divisors (see below), whose sum is σ = 92443265377840. Its totient is φ = 42664067764920.

The previous prime is 63997642685231. The next prime is 63997642685309. The reversal of 63997642685241 is 14258624679936.

63997642685241 is a `hidden beast` number, since 6 + 3 + 9 + 9 + 76 + 4 + 26 + 8 + 524 + 1 = 666.

63997642685241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63997642685241 - 2¹⁴ = 63997642668857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63997642685241.

It is not an unprimeable number, because it can be changed into a prime (63997642685231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85218595 + ... + 85966296.

Almost surely, 2^{63997642685241} is an apocalyptic number.

It is an amenable number.

63997642685241 is a deficient number, since it is larger than the sum of its proper divisors (28445622692599).

63997642685241 is a wasteful number, since it uses less digits than its factorization.

63997642685241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171226436 (or 171226433 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 72.

The spelling of 63997642685241 in words is "sixty-three trillion, nine hundred ninety-seven billion, six hundred forty-two million, six hundred eighty-five thousand, two hundred forty-one".