63999472195 has 16 divisors (see below), whose sum is σ = 81323719200. Its totient is φ = 48183842304.

The previous prime is 63999472169. The next prime is 63999472231. The reversal of 63999472195 is 59127499936.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 63999472195 - 2²³ = 63991083587 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1365256 + ... + 1411354.

It is an arithmetic number, because the mean of its divisors is an integer number (5082732450).

Almost surely, 2^63999472195 is an apocalyptic number.

63999472195 is a deficient number, since it is larger than the sum of its proper divisors (17324247005).

63999472195 is a wasteful number, since it uses less digits than its factorization.

63999472195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62454.

The product of its digits is 33067440, while the sum is 64.

The spelling of 63999472195 in words is "sixty-three billion, nine hundred ninety-nine million, four hundred seventy-two thousand, one hundred ninety-five".