8478945651 has 24 divisors (see below), whose sum is σ = 12515917120. Its totient is φ = 5101755120.

The previous prime is 8478945613. The next prime is 8478945659. The reversal of 8478945651 is 1565498748.

It is not a de Polignac number, because 8478945651 - 2²⁵ = 8445391219 is a prime.

It is a super-2 number, since 2×8478945651² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8478945591 and 8478945600.

It is not an unprimeable number, because it can be changed into a prime (8478945659) 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 23 ways as a sum of consecutive naturals, for example, 33565 + ... + 134478.

Almost surely, 2^8478945651 is an apocalyptic number.

8478945651 is a deficient number, since it is larger than the sum of its proper divisors (4036971469).

8478945651 is a wasteful number, since it uses less digits than its factorization.

8478945651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168207 (or 168196 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 57.

The square root of 8478945651 is about 92081.1905385676. The cubic root of 8478945651 is about 2039.1411265805.

It can be divided in two parts, 847 and 8945651, that added together give a palindrome (8946498).

The spelling of 8478945651 in words is "eight billion, four hundred seventy-eight million, nine hundred forty-five thousand, six hundred fifty-one".