4855163723381 has 2 divisors, whose sum is σ = 4855163723382. Its totient is φ = 4855163723380.

The previous prime is 4855163723357. The next prime is 4855163723497. The reversal of 4855163723381 is 1833273615584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3538198620100 + 1316965103281 = 1881010^2 + 1147591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4855163723381 is a prime.

It is a super-2 number, since 2×4855163723381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4855163723341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2427581861690 + 2427581861691.

It is an arithmetic number, because the mean of its divisors is an integer number (2427581861691).

Almost surely, 2^{4855163723381} is an apocalyptic number.

It is an amenable number.

4855163723381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4855163723381 is an equidigital number, since it uses as much as digits as its factorization.

4855163723381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 56.

The spelling of 4855163723381 in words is "four trillion, eight hundred fifty-five billion, one hundred sixty-three million, seven hundred twenty-three thousand, three hundred eighty-one".