18346330887871 has 12 divisors (see below), whose sum is σ = 21396513092760. Its totient is φ = 15685001198160.

The previous prime is 18346330887827. The next prime is 18346330887893. The reversal of 18346330887871 is 17878803364381.

It is not a de Polignac number, because 18346330887871 - 2²¹ = 18346328790719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18346330887797 and 18346330887806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18346330867871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481234045 + ... + 481272166.

It is an arithmetic number, because the mean of its divisors is an integer number (1783042757730).

Almost surely, 2^{18346330887871} is an apocalyptic number.

18346330887871 is a deficient number, since it is larger than the sum of its proper divisors (3050182204889).

18346330887871 is an equidigital number, since it uses as much as digits as its factorization.

18346330887871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962506614 (or 962506607 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 18346330887871 in words is "eighteen trillion, three hundred forty-six billion, three hundred thirty million, eight hundred eighty-seven thousand, eight hundred seventy-one".