18379085185 has 16 divisors (see below), whose sum is σ = 22431906000. Its totient is φ = 14453968896.

The previous prime is 18379085183. The next prime is 18379085201. The reversal of 18379085185 is 58158097381.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7327188801 + 11051896384 = 85599^2 + 105128^2 .

It is a cyclic number.

It is not a de Polignac number, because 18379085185 - 2¹ = 18379085183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18379085183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54900 + ... + 199429.

It is an arithmetic number, because the mean of its divisors is an integer number (1401994125).

Almost surely, 2^18379085185 is an apocalyptic number.

It is an amenable number.

18379085185 is a deficient number, since it is larger than the sum of its proper divisors (4052820815).

18379085185 is a wasteful number, since it uses less digits than its factorization.

18379085185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254580.

The product of its (nonzero) digits is 2419200, while the sum is 55.

The spelling of 18379085185 in words is "eighteen billion, three hundred seventy-nine million, eighty-five thousand, one hundred eighty-five".