3855856427 has 4 divisors (see below), whose sum is σ = 3910164336. Its totient is φ = 3801548520.

The previous prime is 3855856349. The next prime is 3855856463. The reversal of 3855856427 is 7246585583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3855856427 - 2¹⁰ = 3855855403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3855856027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27153848 + ... + 27153989.

It is an arithmetic number, because the mean of its divisors is an integer number (977541084).

Almost surely, 2^3855856427 is an apocalyptic number.

3855856427 is a deficient number, since it is larger than the sum of its proper divisors (54307909).

3855856427 is an equidigital number, since it uses as much as digits as its factorization.

3855856427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54307908.

The product of its digits is 8064000, while the sum is 53.

The square root of 3855856427 is about 62095.5427305374. The cubic root of 3855856427 is about 1568.0995066647.

The spelling of 3855856427 in words is "three billion, eight hundred fifty-five million, eight hundred fifty-six thousand, four hundred twenty-seven".