797497911618 has 32 divisors (see below), whose sum is σ = 1612255444800. Its totient is φ = 262963993536.

The previous prime is 797497911577. The next prime is 797497911619. The reversal of 797497911618 is 816119794797.

It is not an unprimeable number, because it can be changed into a prime (797497911619) 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 15 ways as a sum of consecutive naturals, for example, 593728 + ... + 1395531.

It is an arithmetic number, because the mean of its divisors is an integer number (50382982650).

Almost surely, 2^797497911618 is an apocalyptic number.

797497911618 is an abundant number, since it is smaller than the sum of its proper divisors (814757533182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797497911618 is a wasteful number, since it uses less digits than its factorization.

797497911618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989986.

The product of its digits is 48009024, while the sum is 69.

The spelling of 797497911618 in words is "seven hundred ninety-seven billion, four hundred ninety-seven million, nine hundred eleven thousand, six hundred eighteen".