3867766486631 has 4 divisors (see below), whose sum is σ = 3867819627672. Its totient is φ = 3867713345592.

The previous prime is 3867766486609. The next prime is 3867766486643. The reversal of 3867766486631 is 1366846677683.

3867766486631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3867766486631 is a prime.

It is a super-2 number, since 2×3867766486631² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867766483631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26461196 + ... + 26606961.

It is an arithmetic number, because the mean of its divisors is an integer number (966954906918).

Almost surely, 2^{3867766486631} is an apocalyptic number.

3867766486631 is a deficient number, since it is larger than the sum of its proper divisors (53141041).

3867766486631 is an equidigital number, since it uses as much as digits as its factorization.

3867766486631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53141040.

The product of its digits is 877879296, while the sum is 71.

The spelling of 3867766486631 in words is "three trillion, eight hundred sixty-seven billion, seven hundred sixty-six million, four hundred eighty-six thousand, six hundred thirty-one".