18204642999019 has 8 divisors (see below), whose sum is σ = 18879826070160. Its totient is φ = 17532622378656.

The previous prime is 18204642999013. The next prime is 18204642999071. The reversal of 18204642999019 is 91099924640281.

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 18204642999019 - 2³¹ = 18202495515371 is a prime.

It is a super-2 number, since 2×18204642999019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18204642999013) 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, 790600969 + ... + 790623994.

It is an arithmetic number, because the mean of its divisors is an integer number (2359978258770).

Almost surely, 2^{18204642999019} is an apocalyptic number.

18204642999019 is a deficient number, since it is larger than the sum of its proper divisors (675183071141).

18204642999019 is a wasteful number, since it uses less digits than its factorization.

18204642999019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581225389.

The product of its (nonzero) digits is 20155392, while the sum is 64.

The spelling of 18204642999019 in words is "eighteen trillion, two hundred four billion, six hundred forty-two million, nine hundred ninety-nine thousand, nineteen".