17818149081 has 8 divisors (see below), whose sum is σ = 23799287520. Its totient is φ = 11857888352.

The previous prime is 17818149049. The next prime is 17818149103. The reversal of 17818149081 is 18094181871.

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 17818149081 - 2⁵ = 17818149049 is a prime.

It is a super-2 number, since 2×17818149081² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 17818149081.

It is not an unprimeable number, because it can be changed into a prime (17818149581) 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, 5217435 + ... + 5220848.

It is an arithmetic number, because the mean of its divisors is an integer number (2974910940).

Almost surely, 2^17818149081 is an apocalyptic number.

It is an amenable number.

17818149081 is a deficient number, since it is larger than the sum of its proper divisors (5981138439).

17818149081 is a wasteful number, since it uses less digits than its factorization.

17818149081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438855.

The product of its (nonzero) digits is 129024, while the sum is 48.

The spelling of 17818149081 in words is "seventeen billion, eight hundred eighteen million, one hundred forty-nine thousand, eighty-one".