4238852542381 has 2 divisors, whose sum is σ = 4238852542382. Its totient is φ = 4238852542380.

The previous prime is 4238852542333. The next prime is 4238852542453. The reversal of 4238852542381 is 1832452588324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3728892309156 + 509960233225 = 1931034^2 + 714115^2 .

It is a cyclic number.

It is not a de Polignac number, because 4238852542381 - 2¹⁵ = 4238852509613 is a prime.

It is a super-2 number, since 2×4238852542381² (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 (4238852542481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119426271190 + 2119426271191.

It is an arithmetic number, because the mean of its divisors is an integer number (2119426271191).

Almost surely, 2^{4238852542381} is an apocalyptic number.

It is an amenable number.

4238852542381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4238852542381 is an equidigital number, since it uses as much as digits as its factorization.

4238852542381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14745600, while the sum is 55.

The spelling of 4238852542381 in words is "four trillion, two hundred thirty-eight billion, eight hundred fifty-two million, five hundred forty-two thousand, three hundred eighty-one".