3869853545671 has 4 divisors (see below), whose sum is σ = 4097491989552. Its totient is φ = 3642215101792.

The previous prime is 3869853545587. The next prime is 3869853545687. The reversal of 3869853545671 is 1765453589683.

It is a happy number.

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 3869853545671 - 2¹¹ = 3869853543623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3869853545671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869853540671) 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, 113819221915 + ... + 113819221948.

It is an arithmetic number, because the mean of its divisors is an integer number (1024372997388).

Almost surely, 2^{3869853545671} is an apocalyptic number.

3869853545671 is a deficient number, since it is larger than the sum of its proper divisors (227638443881).

3869853545671 is a wasteful number, since it uses less digits than its factorization.

3869853545671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227638443880.

The product of its digits is 653184000, while the sum is 70.

The spelling of 3869853545671 in words is "three trillion, eight hundred sixty-nine billion, eight hundred fifty-three million, five hundred forty-five thousand, six hundred seventy-one".