18431453041 has 4 divisors (see below), whose sum is σ = 18432182500. Its totient is φ = 18430723584.

The previous prime is 18431452997. The next prime is 18431453113. The reversal of 18431453041 is 14035413481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14035413481 = 6421 ⋅2185861.

It can be written as a sum of positive squares in 2 ways, for example, as 12787086400 + 5644366641 = 113080^2 + 75129^2 .

It is a cyclic number.

It is not a de Polignac number, because 18431453041 - 2²³ = 18423064433 is a prime.

It is a super-2 number, since 2×18431453041² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18431452988 and 18431453006.

It is not an unprimeable number, because it can be changed into a prime (18431451041) 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 3 ways as a sum of consecutive naturals, for example, 325416 + ... + 377833.

It is an arithmetic number, because the mean of its divisors is an integer number (4608045625).

Almost surely, 2^18431453041 is an apocalyptic number.

It is an amenable number.

18431453041 is a deficient number, since it is larger than the sum of its proper divisors (729459).

18431453041 is an equidigital number, since it uses as much as digits as its factorization.

18431453041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729458.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 18431453041 in words is "eighteen billion, four hundred thirty-one million, four hundred fifty-three thousand, forty-one".