18494184617 has 8 divisors (see below), whose sum is σ = 18555028800. Its totient is φ = 18433386000.

The previous prime is 18494184547. The next prime is 18494184623. The reversal of 18494184617 is 71648149481.

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 18494184617 - 2⁸ = 18494184361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18494184647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926492 + ... + 946242.

It is an arithmetic number, because the mean of its divisors is an integer number (2319378600).

Almost surely, 2^18494184617 is an apocalyptic number.

It is an amenable number.

18494184617 is a deficient number, since it is larger than the sum of its proper divisors (60844183).

18494184617 is a wasteful number, since it uses less digits than its factorization.

18494184617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22783.

The product of its digits is 1548288, while the sum is 53.

The spelling of 18494184617 in words is "eighteen billion, four hundred ninety-four million, one hundred eighty-four thousand, six hundred seventeen".