816469964618 has 48 divisors (see below), whose sum is σ = 1538670581952. Its totient is φ = 318064190400.

The previous prime is 816469964591. The next prime is 816469964647.

816469964618 is nontrivially palindromic in base 10.

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 23 ways as a sum of consecutive naturals, for example, 15373646 + ... + 15426662.

It is an arithmetic number, because the mean of its divisors is an integer number (32055637124).

Almost surely, 2^816469964618 is an apocalyptic number.

816469964618 is a deficient number, since it is larger than the sum of its proper divisors (722200617334).

816469964618 is a wasteful number, since it uses less digits than its factorization.

816469964618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62139 (or 62128 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 68.

The spelling of 816469964618 in words is "eight hundred sixteen billion, four hundred sixty-nine million, nine hundred sixty-four thousand, six hundred eighteen".