18054621323 has 8 divisors (see below), whose sum is σ = 18112293360. Its totient is φ = 17996982400.

The previous prime is 18054621317. The next prime is 18054621331. The reversal of 18054621323 is 32312645081.

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 18054621323 - 2⁴ = 18054621307 is a prime.

It is a super-2 number, since 2×18054621323² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18054621223) 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, 1524023 + ... + 1535823.

It is an arithmetic number, because the mean of its divisors is an integer number (2264036670).

Almost surely, 2^18054621323 is an apocalyptic number.

18054621323 is a deficient number, since it is larger than the sum of its proper divisors (57672037).

18054621323 is a wasteful number, since it uses less digits than its factorization.

18054621323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16557.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 18054621323 in words is "eighteen billion, fifty-four million, six hundred twenty-one thousand, three hundred twenty-three".