63812803265 has 16 divisors (see below), whose sum is σ = 77511325248. Its totient is φ = 50426481216.

The previous prime is 63812803259. The next prime is 63812803289. The reversal of 63812803265 is 56230821836.

63812803265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63812803265 - 2²² = 63808608961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3544667 + ... + 3562623.

It is an arithmetic number, because the mean of its divisors is an integer number (4844457828).

Almost surely, 2^63812803265 is an apocalyptic number.

It is an amenable number.

63812803265 is a deficient number, since it is larger than the sum of its proper divisors (13698521983).

63812803265 is a wasteful number, since it uses less digits than its factorization.

63812803265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26608.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 63812803265 in words is "sixty-three billion, eight hundred twelve million, eight hundred three thousand, two hundred sixty-five".