716391193618 has 16 divisors (see below), whose sum is σ = 1077145527744. Its totient is φ = 357343474320.

The previous prime is 716391193601. The next prime is 716391193619. The reversal of 716391193618 is 816391193617.

It is not an unprimeable number, because it can be changed into a prime (716391193619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1627371 + ... + 2020177.

It is an arithmetic number, because the mean of its divisors is an integer number (67321595484).

Almost surely, 2^716391193618 is an apocalyptic number.

716391193618 is a deficient number, since it is larger than the sum of its proper divisors (360754334126).

716391193618 is a wasteful number, since it uses less digits than its factorization.

716391193618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394977.

The product of its digits is 1469664, while the sum is 55.

Subtracting 716391193618 from its reverse (816391193617), we obtain a palindrome (99999999999).

The spelling of 716391193618 in words is "seven hundred sixteen billion, three hundred ninety-one million, one hundred ninety-three thousand, six hundred eighteen".