63863433464 has 32 divisors (see below), whose sum is σ = 122049184320. Its totient is φ = 31322812416.

The previous prime is 63863433449. The next prime is 63863433493. The reversal of 63863433464 is 46433436836.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

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, 276464 + ... + 451839.

It is an arithmetic number, because the mean of its divisors is an integer number (3814037010).

Almost surely, 2^63863433464 is an apocalyptic number.

It is an amenable number.

63863433464 is a deficient number, since it is larger than the sum of its proper divisors (58185750856).

63863433464 is a wasteful number, since it uses less digits than its factorization.

63863433464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728519 (or 728515 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 50.

The spelling of 63863433464 in words is "sixty-three billion, eight hundred sixty-three million, four hundred thirty-three thousand, four hundred sixty-four".