63205525449 has 28 divisors (see below), whose sum is σ = 103379944752. Its totient is φ = 38306374200.

The previous prime is 63205525403. The next prime is 63205525451. The reversal of 63205525449 is 94452550236.

63205525449 is a `hidden beast` number, since 6 + 3 + 2 + 0 + 552 + 54 + 49 = 666.

It is not a de Polignac number, because 63205525449 - 2⁸ = 63205525193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63205525049) 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 27 ways as a sum of consecutive naturals, for example, 3932967 + ... + 3949004.

It is an arithmetic number, because the mean of its divisors is an integer number (3692140884).

Almost surely, 2^63205525449 is an apocalyptic number.

It is an amenable number.

63205525449 is a deficient number, since it is larger than the sum of its proper divisors (40174419303).

63205525449 is an equidigital number, since it uses as much as digits as its factorization.

63205525449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882000 (or 7881985 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 63205525449 in words is "sixty-three billion, two hundred five million, five hundred twenty-five thousand, four hundred forty-nine".