63445444454436 has 96 divisors (see below), whose sum is σ = 171022568693760. Its totient is φ = 18092288524800.

The previous prime is 63445444454389. The next prime is 63445444454449.

63445444454436 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 63445444454436.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13157325 + ... + 17320683.

It is an arithmetic number, because the mean of its divisors is an integer number (1781485090560).

Almost surely, 2^{63445444454436} is an apocalyptic number.

63445444454436 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

63445444454436 is an abundant number, since it is smaller than the sum of its proper divisors (107577124239324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63445444454436 is a wasteful number, since it uses less digits than its factorization.

63445444454436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170185 (or 4170183 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 60.

The spelling of 63445444454436 in words is "sixty-three trillion, four hundred forty-five billion, four hundred forty-four million, four hundred fifty-four thousand, four hundred thirty-six".