63563255791 has 8 divisors (see below), whose sum is σ = 75802143744. Its totient is φ = 52113973560.

The previous prime is 63563255771. The next prime is 63563255801. The reversal of 63563255791 is 19755236536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63563255791 - 2²⁹ = 63026384879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63563255741) 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 7 ways as a sum of consecutive naturals, for example, 197401255 + ... + 197401576.

It is an arithmetic number, because the mean of its divisors is an integer number (9475267968).

Almost surely, 2^63563255791 is an apocalyptic number.

63563255791 is a deficient number, since it is larger than the sum of its proper divisors (12238887953).

63563255791 is a wasteful number, since it uses less digits than its factorization.

63563255791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394802861.

The product of its digits is 5103000, while the sum is 52.

The spelling of 63563255791 in words is "sixty-three billion, five hundred sixty-three million, two hundred fifty-five thousand, seven hundred ninety-one".