18027040154 has 16 divisors (see below), whose sum is σ = 27438518016. Its totient is φ = 8881026000.

The previous prime is 18027040151. The next prime is 18027040183. The reversal of 18027040154 is 45104072081.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18027040154.

It is not an unprimeable number, because it can be changed into a prime (18027040151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193679 + ... + 271229.

It is an arithmetic number, because the mean of its divisors is an integer number (1714907376).

Almost surely, 2^18027040154 is an apocalyptic number.

18027040154 is a deficient number, since it is larger than the sum of its proper divisors (9411477862).

18027040154 is a wasteful number, since it uses less digits than its factorization.

18027040154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79261.

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 18027040154 in words is "eighteen billion, twenty-seven million, forty thousand, one hundred fifty-four".