8380886618 has 16 divisors (see below), whose sum is σ = 13723815336. Its totient is φ = 3815112960.

The previous prime is 8380886609. The next prime is 8380886659. The reversal of 8380886618 is 8166880838.

It can be written as a sum of positive squares in 4 ways, for example, as 6856999249 + 1523887369 = 82807^2 + 39037^2 .

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, 2205923 + ... + 2209718.

Almost surely, 2^8380886618 is an apocalyptic number.

8380886618 is a deficient number, since it is larger than the sum of its proper divisors (5342928718).

8380886618 is a wasteful number, since it uses less digits than its factorization.

8380886618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415729.

The product of its (nonzero) digits is 3538944, while the sum is 56.

The square root of 8380886618 is about 91547.1824689324. The cubic root of 8380886618 is about 2031.2497354502.

The spelling of 8380886618 in words is "eight billion, three hundred eighty million, eight hundred eighty-six thousand, six hundred eighteen".