63681604223 has 32 divisors (see below), whose sum is σ = 72884136960. Its totient is φ = 55277770240.

The previous prime is 63681604117. The next prime is 63681604237. The reversal of 63681604223 is 32240618636.

It is a cyclic number.

It is not a de Polignac number, because 63681604223 - 2²⁰ = 63680555647 is a prime.

It is a super-2 number, since 2×63681604223² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63681600223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9373958 + ... + 9380748.

It is an arithmetic number, because the mean of its divisors is an integer number (2277629280).

Almost surely, 2^63681604223 is an apocalyptic number.

63681604223 is a deficient number, since it is larger than the sum of its proper divisors (9202532737).

63681604223 is a wasteful number, since it uses less digits than its factorization.

63681604223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 63681604223 in words is "sixty-three billion, six hundred eighty-one million, six hundred four thousand, two hundred twenty-three".