63647912312 has 32 divisors (see below), whose sum is σ = 119614492800. Its totient is φ = 31750795104.

The previous prime is 63647912287. The next prime is 63647912323. The reversal of 63647912312 is 21321974636.

63647912312 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 7 ways as a sum of consecutive naturals, for example, 8025293 + ... + 8033219.

It is an arithmetic number, because the mean of its divisors is an integer number (3737952900).

Almost surely, 2^63647912312 is an apocalyptic number.

It is an amenable number.

63647912312 is a deficient number, since it is larger than the sum of its proper divisors (55966580488).

63647912312 is a wasteful number, since it uses less digits than its factorization.

63647912312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115 (or 10111 counting only the distinct ones).

The product of its digits is 326592, while the sum is 44.

The spelling of 63647912312 in words is "sixty-three billion, six hundred forty-seven million, nine hundred twelve thousand, three hundred twelve".