8563428418 has 16 divisors (see below), whose sum is σ = 12914973720. Its totient is φ = 4258483200.

The previous prime is 8563428397. The next prime is 8563428431. The reversal of 8563428418 is 8148243658.

It can be written as a sum of positive squares in 4 ways, for example, as 8460872289 + 102556129 = 91983^2 + 10127^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378958 + ... + 400918.

Almost surely, 2^8563428418 is an apocalyptic number.

8563428418 is a deficient number, since it is larger than the sum of its proper divisors (4351545302).

8563428418 is a wasteful number, since it uses less digits than its factorization.

8563428418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23013.

The product of its digits is 1474560, while the sum is 49.

The square root of 8563428418 is about 92538.7941244103. The cubic root of 8563428418 is about 2045.8913081153.

The spelling of 8563428418 in words is "eight billion, five hundred sixty-three million, four hundred twenty-eight thousand, four hundred eighteen".