18923857224341 has 2 divisors, whose sum is σ = 18923857224342. Its totient is φ = 18923857224340.

The previous prime is 18923857224299. The next prime is 18923857224397. The reversal of 18923857224341 is 14342275832981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9799742246116 + 9124114978225 = 3130454^2 + 3020615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18923857224341 is a prime.

It is a super-2 number, since 2×18923857224341² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18923857220341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9461928612170 + 9461928612171.

It is an arithmetic number, because the mean of its divisors is an integer number (9461928612171).

Almost surely, 2^{18923857224341} is an apocalyptic number.

It is an amenable number.

18923857224341 is a deficient number, since it is larger than the sum of its proper divisors (1).

18923857224341 is an equidigital number, since it uses as much as digits as its factorization.

18923857224341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23224320, while the sum is 59.

The spelling of 18923857224341 in words is "eighteen trillion, nine hundred twenty-three billion, eight hundred fifty-seven million, two hundred twenty-four thousand, three hundred forty-one".