18040654373 has 8 divisors (see below), whose sum is σ = 20620586880. Its totient is φ = 15461395920.

The previous prime is 18040654369. The next prime is 18040654397. The reversal of 18040654373 is 37345604081.

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 18040654373 - 2² = 18040654369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18040654373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18043654373) 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, 109793 + ... + 219398.

It is an arithmetic number, because the mean of its divisors is an integer number (2577573360).

Almost surely, 2^18040654373 is an apocalyptic number.

It is an amenable number.

18040654373 is a deficient number, since it is larger than the sum of its proper divisors (2579932507).

18040654373 is an equidigital number, since it uses as much as digits as its factorization.

18040654373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337027.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 18040654373 in words is "eighteen billion, forty million, six hundred fifty-four thousand, three hundred seventy-three".