63440430412636 has 24 divisors (see below), whose sum is σ = 112386311815680. Its totient is φ = 31330245806832.

The previous prime is 63440430412627. The next prime is 63440430412651. The reversal of 63440430412636 is 63621403404436.

63440430412636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 22438476 + ... + 25107091.

It is an arithmetic number, because the mean of its divisors is an integer number (4682762992320).

Almost surely, 2^{63440430412636} is an apocalyptic number.

It is an amenable number.

63440430412636 is a deficient number, since it is larger than the sum of its proper divisors (48945881403044).

63440430412636 is a wasteful number, since it uses less digits than its factorization.

63440430412636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47549673 (or 47549671 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 46.

The spelling of 63440430412636 in words is "sixty-three trillion, four hundred forty billion, four hundred thirty million, four hundred twelve thousand, six hundred thirty-six".