18076673438 has 16 divisors (see below), whose sum is σ = 28013382144. Its totient is φ = 8739373080.

The previous prime is 18076673437. The next prime is 18076673467. The reversal of 18076673438 is 83437667081.

It is a super-2 number, since 2×18076673438² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18076673438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18076673437) 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 7 ways as a sum of consecutive naturals, for example, 49220 + ... + 196407.

It is an arithmetic number, because the mean of its divisors is an integer number (1750836384).

Almost surely, 2^18076673438 is an apocalyptic number.

18076673438 is a deficient number, since it is larger than the sum of its proper divisors (9936708706).

18076673438 is a wasteful number, since it uses less digits than its factorization.

18076673438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246847.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 18076673438 in words is "eighteen billion, seventy-six million, six hundred seventy-three thousand, four hundred thirty-eight".