3788394725871 has 24 divisors (see below), whose sum is σ = 6528752817840. Its totient is φ = 2164796985456.

The previous prime is 3788394725827. The next prime is 3788394725873. The reversal of 3788394725871 is 1785274938873.

3788394725871 is a `hidden beast` number, since 3 + 7 + 8 + 8 + 39 + 4 + 7 + 2 + 587 + 1 = 666.

It is not a de Polignac number, because 3788394725871 - 2⁹ = 3788394725359 is a prime.

It is a tetranacci number.

It is a self number, because there is not a number n which added to its sum of digits gives 3788394725871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3788394725873) 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, 1431742716 + ... + 1431745361.

It is an arithmetic number, because the mean of its divisors is an integer number (272031367410).

Almost surely, 2^{3788394725871} is an apocalyptic number.

3788394725871 is a deficient number, since it is larger than the sum of its proper divisors (2740358091969).

3788394725871 is a wasteful number, since it uses less digits than its factorization.

3788394725871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863488100 (or 2863488087 counting only the distinct ones).

The product of its digits is 568995840, while the sum is 72.

The spelling of 3788394725871 in words is "three trillion, seven hundred eighty-eight billion, three hundred ninety-four million, seven hundred twenty-five thousand, eight hundred seventy-one".