3985128577959 has 32 divisors (see below), whose sum is σ = 5476575476736. Its totient is φ = 2576019022080.

The previous prime is 3985128577949. The next prime is 3985128577967. The reversal of 3985128577959 is 9597758215893.

3985128577959 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3985128577959 - 2⁷ = 3985128577831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985128577939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176579694 + ... + 176602260.

It is an arithmetic number, because the mean of its divisors is an integer number (171142983648).

Almost surely, 2^{3985128577959} is an apocalyptic number.

3985128577959 is a deficient number, since it is larger than the sum of its proper divisors (1491446898777).

3985128577959 is a wasteful number, since it uses less digits than its factorization.

3985128577959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31375.

The product of its digits is 1714608000, while the sum is 78.

The spelling of 3985128577959 in words is "three trillion, nine hundred eighty-five billion, one hundred twenty-eight million, five hundred seventy-seven thousand, nine hundred fifty-nine".