3881306840235 has 24 divisors (see below), whose sum is σ = 6825967735440. Its totient is φ = 1881845739840.

The previous prime is 3881306840209. The next prime is 3881306840237. The reversal of 3881306840235 is 5320486031883.

It is a happy number.

It is not a de Polignac number, because 3881306840235 - 2²¹ = 3881304743083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3881306840237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1069228720 + ... + 1069232349.

It is an arithmetic number, because the mean of its divisors is an integer number (284415322310).

Almost surely, 2^{3881306840235} is an apocalyptic number.

3881306840235 is a deficient number, since it is larger than the sum of its proper divisors (2944660895205).

3881306840235 is a wasteful number, since it uses less digits than its factorization.

3881306840235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138461099 (or 2138461088 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 3881306840235 in words is "three trillion, eight hundred eighty-one billion, three hundred six million, eight hundred forty thousand, two hundred thirty-five".