63172043476 has 12 divisors (see below), whose sum is σ = 111168681120. Its totient is φ = 31409563160.

The previous prime is 63172043447. The next prime is 63172043479. The reversal of 63172043476 is 67434027136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63172043479) by changing a digit.

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, 44113840 + ... + 44115271.

It is an arithmetic number, because the mean of its divisors is an integer number (9264056760).

Almost surely, 2^63172043476 is an apocalyptic number.

It is an amenable number.

63172043476 is a deficient number, since it is larger than the sum of its proper divisors (47996637644).

63172043476 is a wasteful number, since it uses less digits than its factorization.

63172043476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88229294 (or 88229292 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 63172043476 in words is "sixty-three billion, one hundred seventy-two million, forty-three thousand, four hundred seventy-six".