63447873351 has 8 divisors (see below), whose sum is σ = 84722126064. Its totient is φ = 42236101440.

The previous prime is 63447873343. The next prime is 63447873361. The reversal of 63447873351 is 15337874436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63447873351 - 2³ = 63447873343 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 63447873294 and 63447873303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63447873311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15617830 + ... + 15621891.

It is an arithmetic number, because the mean of its divisors is an integer number (10590265758).

Almost surely, 2^63447873351 is an apocalyptic number.

63447873351 is a deficient number, since it is larger than the sum of its proper divisors (21274252713).

63447873351 is a wasteful number, since it uses less digits than its factorization.

63447873351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31240401.

The product of its digits is 5080320, while the sum is 51.

The spelling of 63447873351 in words is "sixty-three billion, four hundred forty-seven million, eight hundred seventy-three thousand, three hundred fifty-one".