18002489101 has 8 divisors (see below), whose sum is σ = 18388218240. Its totient is φ = 17616872448.

The previous prime is 18002489093. The next prime is 18002489143. The reversal of 18002489101 is 10198420081.

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 18002489101 - 2³ = 18002489093 is a prime.

It is a super-2 number, since 2×18002489101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18002489191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348910 + ... + 397168.

It is an arithmetic number, because the mean of its divisors is an integer number (2298527280).

Almost surely, 2^18002489101 is an apocalyptic number.

It is an amenable number.

18002489101 is a deficient number, since it is larger than the sum of its proper divisors (385729139).

18002489101 is an equidigital number, since it uses as much as digits as its factorization.

18002489101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56243.

The product of its (nonzero) digits is 4608, while the sum is 34.

The spelling of 18002489101 in words is "eighteen billion, two million, four hundred eighty-nine thousand, one hundred one".