3985398875727 has 12 divisors (see below), whose sum is σ = 5756726777880. Its totient is φ = 2656914347088.

The previous prime is 3985398875723. The next prime is 3985398875737. The reversal of 3985398875727 is 7275788935893.

3985398875727 is a `hidden beast` number, since 3 + 9 + 8 + 5 + 39 + 8 + 8 + 7 + 572 + 7 = 666.

It is not a de Polignac number, because 3985398875727 - 2² = 3985398875723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985398875723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62077 + ... + 2823942.

It is an arithmetic number, because the mean of its divisors is an integer number (479727231490).

Almost surely, 2^{3985398875727} is an apocalyptic number.

3985398875727 is a deficient number, since it is larger than the sum of its proper divisors (1771327902153).

3985398875727 is a wasteful number, since it uses less digits than its factorization.

3985398875727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039462 (or 3039459 counting only the distinct ones).

The product of its digits is 6401203200, while the sum is 81.

The spelling of 3985398875727 in words is "three trillion, nine hundred eighty-five billion, three hundred ninety-eight million, eight hundred seventy-five thousand, seven hundred twenty-seven".