8157317744618 has 32 divisors (see below), whose sum is σ = 14008298320128. Its totient is φ = 3489917270400.

The previous prime is 8157317744603. The next prime is 8157317744629. The reversal of 8157317744618 is 8164477137518.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18666371 + ... + 19098377.

It is an arithmetic number, because the mean of its divisors is an integer number (437759322504).

Almost surely, 2^{8157317744618} is an apocalyptic number.

8157317744618 is a deficient number, since it is larger than the sum of its proper divisors (5850980575510).

8157317744618 is a wasteful number, since it uses less digits than its factorization.

8157317744618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434358.

The product of its digits is 31610880, while the sum is 62.

The spelling of 8157317744618 in words is "eight trillion, one hundred fifty-seven billion, three hundred seventeen million, seven hundred forty-four thousand, six hundred eighteen".