63287128172 has 12 divisors (see below), whose sum is σ = 113453754456. Its totient is φ = 30871769760.

The previous prime is 63287128159. The next prime is 63287128189. The reversal of 63287128172 is 27182178236.

It is a super-3 number, since 3×63287128172³ (a number of 33 digits) contains 333 as substring.

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, 192948398 + ... + 192948725.

It is an arithmetic number, because the mean of its divisors is an integer number (9454479538).

Almost surely, 2^63287128172 is an apocalyptic number.

It is an amenable number.

63287128172 is a deficient number, since it is larger than the sum of its proper divisors (50166626284).

63287128172 is a wasteful number, since it uses less digits than its factorization.

63287128172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385897168 (or 385897166 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The spelling of 63287128172 in words is "sixty-three billion, two hundred eighty-seven million, one hundred twenty-eight thousand, one hundred seventy-two".