3865854876407 has 4 divisors (see below), whose sum is σ = 3960144019776. Its totient is φ = 3771565733040.

The previous prime is 3865854876347. The next prime is 3865854876419. The reversal of 3865854876407 is 7046784585683.

3865854876407 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 not a de Polignac number, because 3865854876407 - 2⁶ = 3865854876343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865854876487) 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, 47144571623 + ... + 47144571704.

It is an arithmetic number, because the mean of its divisors is an integer number (990036004944).

Almost surely, 2^{3865854876407} is an apocalyptic number.

3865854876407 is a deficient number, since it is larger than the sum of its proper divisors (94289143369).

3865854876407 is an equidigital number, since it uses as much as digits as its factorization.

3865854876407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94289143368.

The product of its (nonzero) digits is 1083801600, while the sum is 71.

The spelling of 3865854876407 in words is "three trillion, eight hundred sixty-five billion, eight hundred fifty-four million, eight hundred seventy-six thousand, four hundred seven".