63672823325 has 24 divisors (see below), whose sum is σ = 80478052200. Its totient is φ = 49956008960.

The previous prime is 63672823321. The next prime is 63672823367. The reversal of 63672823325 is 52332827636.

It can be written as a sum of positive squares in 12 ways, for example, as 375769 + 63672447556 = 613^2 + 252334^2 .

It is not a de Polignac number, because 63672823325 - 2² = 63672823321 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63672823325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63672823321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3607121 + ... + 3624729.

It is an arithmetic number, because the mean of its divisors is an integer number (3353252175).

Almost surely, 2^63672823325 is an apocalyptic number.

It is an amenable number.

63672823325 is a deficient number, since it is larger than the sum of its proper divisors (16805228875).

63672823325 is a wasteful number, since it uses less digits than its factorization.

63672823325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20401 (or 20396 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 47.

The spelling of 63672823325 in words is "sixty-three billion, six hundred seventy-two million, eight hundred twenty-three thousand, three hundred twenty-five".