8472494656 has 14 divisors (see below), whose sum is σ = 16812606710. Its totient is φ = 4236247296.

The previous prime is 8472494647. The next prime is 8472494671. The reversal of 8472494656 is 6564942748.

It can be written as a sum of positive squares in only one way, i.e., 7218201600 + 1254293056 = 84960^2 + 35416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8472494597 and 8472494606.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66191301 + ... + 66191428.

Almost surely, 2^8472494656 is an apocalyptic number.

It is an amenable number.

8472494656 is a deficient number, since it is larger than the sum of its proper divisors (8340112054).

8472494656 is a wasteful number, since it uses less digits than its factorization.

8472494656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132382741 (or 132382731 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 55.

The square root of 8472494656 is about 92046.1550310495. The cubic root of 8472494656 is about 2038.6238520965.

The spelling of 8472494656 in words is "eight billion, four hundred seventy-two million, four hundred ninety-four thousand, six hundred fifty-six".