18510140001 has 8 divisors (see below), whose sum is σ = 24680899360. Its totient is φ = 12339736992.

The previous prime is 18510139997. The next prime is 18510140057. The reversal of 18510140001 is 10004101581.

It is a happy number.

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

It is not a de Polignac number, because 18510140001 - 2² = 18510139997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18510140001.

It is not an unprimeable number, because it can be changed into a prime (18510147001) 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, 75621 + ... + 206733.

It is an arithmetic number, because the mean of its divisors is an integer number (3085112420).

Almost surely, 2^18510140001 is an apocalyptic number.

It is an amenable number.

18510140001 is a deficient number, since it is larger than the sum of its proper divisors (6170759359).

18510140001 is a wasteful number, since it uses less digits than its factorization.

18510140001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178175.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 18510140001 its reverse (10004101581), we get a palindrome (28514241582).

The spelling of 18510140001 in words is "eighteen billion, five hundred ten million, one hundred forty thousand, one".