18530074043431 has 4 divisors (see below), whose sum is σ = 18535324847200. Its totient is φ = 18524823239664.

The previous prime is 18530074043401. The next prime is 18530074043443. The reversal of 18530074043431 is 13434047003581.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18530074043431 - 2⁷ = 18530074043303 is a prime.

It is a super-2 number, since 2×18530074043431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18530074043401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625396591 + ... + 2625403648.

It is an arithmetic number, because the mean of its divisors is an integer number (4633831211800).

Almost surely, 2^{18530074043431} is an apocalyptic number.

18530074043431 is a deficient number, since it is larger than the sum of its proper divisors (5250803769).

18530074043431 is an equidigital number, since it uses as much as digits as its factorization.

18530074043431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250803768.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 18530074043431 in words is "eighteen trillion, five hundred thirty billion, seventy-four million, forty-three thousand, four hundred thirty-one".