8451478063 has 6 divisors (see below), whose sum is σ = 9659110056. Its totient is φ = 7243915572.

The previous prime is 8451478001. The next prime is 8451478067. The reversal of 8451478063 is 3608741548.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8451478063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451478067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225856 + ... + 260602.

It is an arithmetic number, because the mean of its divisors is an integer number (1609851676).

Almost surely, 2^8451478063 is an apocalyptic number.

8451478063 is a deficient number, since it is larger than the sum of its proper divisors (1207631993).

8451478063 is an frugal number, since it uses more digits than its factorization.

8451478063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69501 (or 34754 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 8451478063 is about 91931.9208055613. The cubic root of 8451478063 is about 2036.9368085122.

The spelling of 8451478063 in words is "eight billion, four hundred fifty-one million, four hundred seventy-eight thousand, sixty-three".