63448448411505 has 64 divisors (see below), whose sum is σ = 107544526080768. Its totient is φ = 31832226324480.

The previous prime is 63448448411503. The next prime is 63448448411531. The reversal of 63448448411505 is 50511484484436.

It is not a de Polignac number, because 63448448411505 - 2¹ = 63448448411503 is a prime.

It is a super-2 number, since 2×63448448411505² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63448448411501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6067552237 + ... + 6067562693.

It is an arithmetic number, because the mean of its divisors is an integer number (1680383220012).

Almost surely, 2^{63448448411505} is an apocalyptic number.

It is an amenable number.

63448448411505 is a deficient number, since it is larger than the sum of its proper divisors (44096077669263).

63448448411505 is a wasteful number, since it uses less digits than its factorization.

63448448411505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20466.

The product of its (nonzero) digits is 29491200, while the sum is 57.

The spelling of 63448448411505 in words is "sixty-three trillion, four hundred forty-eight billion, four hundred forty-eight million, four hundred eleven thousand, five hundred five".