3851851835387 has 2 divisors, whose sum is σ = 3851851835388. Its totient is φ = 3851851835386.

The previous prime is 3851851835287. The next prime is 3851851835399. The reversal of 3851851835387 is 7835381581583.

It is a happy number.

3851851835387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (7835381581583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3851851835387 - 2⁸ = 3851851835131 is a prime.

It is a super-3 number, since 3×3851851835387³ (a number of 39 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3851851835287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925925917693 + 1925925917694.

It is an arithmetic number, because the mean of its divisors is an integer number (1925925917694).

Almost surely, 2^{3851851835387} is an apocalyptic number.

3851851835387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3851851835387 is an equidigital number, since it uses as much as digits as its factorization.

3851851835387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768000, while the sum is 65.

The spelling of 3851851835387 in words is "three trillion, eight hundred fifty-one billion, eight hundred fifty-one million, eight hundred thirty-five thousand, three hundred eighty-seven".