18128316677 has 8 divisors (see below), whose sum is σ = 18502348800. Its totient is φ = 17757898704.

The previous prime is 18128316667. The next prime is 18128316733. The reversal of 18128316677 is 77661382181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18128316677 - 2⁸ = 18128316421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18128316667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893402 + ... + 913467.

It is an arithmetic number, because the mean of its divisors is an integer number (2312793600).

Almost surely, 2^18128316677 is an apocalyptic number.

It is an amenable number.

18128316677 is a deficient number, since it is larger than the sum of its proper divisors (374032123).

18128316677 is a wasteful number, since it uses less digits than its factorization.

18128316677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807075.

The product of its digits is 677376, while the sum is 50.

The spelling of 18128316677 in words is "eighteen billion, one hundred twenty-eight million, three hundred sixteen thousand, six hundred seventy-seven".