8480474721 has 12 divisors (see below), whose sum is σ = 12480699348. Its totient is φ = 5546976864.

The previous prime is 8480474719. The next prime is 8480474741. The reversal of 8480474721 is 1274740848.

8480474721 is a `hidden beast` number, since 84 + 80 + 474 + 7 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2190240000 + 6290234721 = 46800^2 + 79311^2 .

It is not a de Polignac number, because 8480474721 - 2¹ = 8480474719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8480474741) 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 11 ways as a sum of consecutive naturals, for example, 8888910 + ... + 8889863.

It is an arithmetic number, because the mean of its divisors is an integer number (1040058279).

Almost surely, 2^8480474721 is an apocalyptic number.

It is an amenable number.

8480474721 is a deficient number, since it is larger than the sum of its proper divisors (4000224627).

8480474721 is a wasteful number, since it uses less digits than its factorization.

8480474721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17778832 (or 17778829 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 45.

The square root of 8480474721 is about 92089.4930000160. The cubic root of 8480474721 is about 2039.2636969346.

The spelling of 8480474721 in words is "eight billion, four hundred eighty million, four hundred seventy-four thousand, seven hundred twenty-one".