18074695185 has 40 divisors (see below), whose sum is σ = 32475707880. Its totient is φ = 9617481216.

The previous prime is 18074695183. The next prime is 18074695189. The reversal of 18074695185 is 58159647081.

It is a happy number.

18074695185 is a `hidden beast` number, since 1 + 80 + 7 + 46 + 9 + 518 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1559618064 + 16515077121 = 39492^2 + 128511^2 .

It is not a de Polignac number, because 18074695185 - 2¹ = 18074695183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18074695181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 123831 + ... + 226899.

It is an arithmetic number, because the mean of its divisors is an integer number (811892697).

Almost surely, 2^18074695185 is an apocalyptic number.

18074695185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18074695185 is a deficient number, since it is larger than the sum of its proper divisors (14401012695).

18074695185 is a wasteful number, since it uses less digits than its factorization.

18074695185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103519 (or 103510 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 18074695185 in words is "eighteen billion, seventy-four million, six hundred ninety-five thousand, one hundred eighty-five".