18506671867374 has 8 divisors (see below), whose sum is σ = 37013343734760. Its totient is φ = 6168890622456.

The previous prime is 18506671867297. The next prime is 18506671867393. The reversal of 18506671867374 is 47376817660581.

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

18506671867374 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18506671867299 and 18506671867308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542222655609 + ... + 1542222655620.

It is an arithmetic number, because the mean of its divisors is an integer number (4626667966845).

Almost surely, 2^{18506671867374} is an apocalyptic number.

18506671867374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18506671867374 is a wasteful number, since it uses less digits than its factorization.

18506671867374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084445311234.

The product of its (nonzero) digits is 284497920, while the sum is 69.

The spelling of 18506671867374 in words is "eighteen trillion, five hundred six billion, six hundred seventy-one million, eight hundred sixty-seven thousand, three hundred seventy-four".