18235641443041 has 9 divisors (see below), whose sum is σ = 20044186441489. Its totient is φ = 16577813154100.

The previous prime is 18235641442981. The next prime is 18235641443059. The reversal of 18235641443041 is 14034414653281.

The square root of 18235641443041 is 4270321.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 18235641443041 - 2³¹ = 18233493959393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18235641442982 and 18235641443000.

It is not an unprimeable number, because it can be changed into a prime (18235641743041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46779426 + ... + 47167636.

Almost surely, 2^{18235641443041} is an apocalyptic number.

18235641443041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18235641443041 is the 4270321-st square number.

18235641443041 is the 2135161-st centered octagonal number.

It is an amenable number.

18235641443041 is a deficient number, since it is larger than the sum of its proper divisors (1808544998448).

18235641443041 is an frugal number, since it uses more digits than its factorization.

18235641443041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776444 (or 388222 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 18235641443041 in words is "eighteen trillion, two hundred thirty-five billion, six hundred forty-one million, four hundred forty-three thousand, forty-one".