63667121242475 has 24 divisors (see below), whose sum is σ = 83408998625280. Its totient is φ = 48074920740000.

The previous prime is 63667121242427. The next prime is 63667121242537. The reversal of 63667121242475 is 57424212176636.

63667121242475 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 63667121242475 - 2⁶ = 63667121242411 is a prime.

It is a super-2 number, since 2×63667121242475² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63667121242475.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 247170251 + ... + 247427700.

It is an arithmetic number, because the mean of its divisors is an integer number (3475374942720).

Almost surely, 2^{63667121242475} is an apocalyptic number.

63667121242475 is a deficient number, since it is larger than the sum of its proper divisors (19741877382805).

63667121242475 is a wasteful number, since it uses less digits than its factorization.

63667121242475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494598251 (or 494598246 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 56.

The spelling of 63667121242475 in words is "sixty-three trillion, six hundred sixty-seven billion, one hundred twenty-one million, two hundred forty-two thousand, four hundred seventy-five".