63654440312 has 16 divisors (see below), whose sum is σ = 119377416840. Its totient is φ = 31820462496.

The previous prime is 63654440309. The next prime is 63654440363. The reversal of 63654440312 is 21304445636.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804563 + ... + 880130.

Almost surely, 2^63654440312 is an apocalyptic number.

It is an amenable number.

63654440312 is a deficient number, since it is larger than the sum of its proper divisors (55722976528).

63654440312 is a wasteful number, since it uses less digits than its factorization.

63654440312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689422 (or 1689418 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 63654440312 its reverse (21304445636), we get a palindrome (84958885948).

The spelling of 63654440312 in words is "sixty-three billion, six hundred fifty-four million, four hundred forty thousand, three hundred twelve".