63906273912 has 64 divisors (see below), whose sum is σ = 173368863360. Its totient is φ = 19513353600.

The previous prime is 63906273863. The next prime is 63906273947. The reversal of 63906273912 is 21937260936.

It is a happy number.

63906273912 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740914 + ... + 822657.

It is an arithmetic number, because the mean of its divisors is an integer number (2708888490).

Almost surely, 2^63906273912 is an apocalyptic number.

It is an amenable number.

63906273912 is an abundant number, since it is smaller than the sum of its proper divisors (109462589448).

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

63906273912 is a wasteful number, since it uses less digits than its factorization.

63906273912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563724 (or 1563720 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The spelling of 63906273912 in words is "sixty-three billion, nine hundred six million, two hundred seventy-three thousand, nine hundred twelve".