3855004242403 has 2 divisors, whose sum is σ = 3855004242404. Its totient is φ = 3855004242402.

The previous prime is 3855004242379. The next prime is 3855004242409. The reversal of 3855004242403 is 3042424005583.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3855004242403 - 2⁵ = 3855004242371 is a prime.

It is a super-2 number, since 2×3855004242403² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3855004242409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927502121201 + 1927502121202.

It is an arithmetic number, because the mean of its divisors is an integer number (1927502121202).

Almost surely, 2^{3855004242403} is an apocalyptic number.

3855004242403 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855004242403 is an equidigital number, since it uses as much as digits as its factorization.

3855004242403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 3855004242403 its reverse (3042424005583), we get a palindrome (6897428247986).

The spelling of 3855004242403 in words is "three trillion, eight hundred fifty-five billion, four million, two hundred forty-two thousand, four hundred three".