3988785997198 has 16 divisors (see below), whose sum is σ = 6004368326880. Its totient is φ = 1987331632416.

The previous prime is 3988785997159. The next prime is 3988785997213. The reversal of 3988785997198 is 8917995878893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4185136 + ... + 5049052.

It is an arithmetic number, because the mean of its divisors is an integer number (375273020430).

Almost surely, 2^{3988785997198} is an apocalyptic number.

3988785997198 is a deficient number, since it is larger than the sum of its proper divisors (2015582329682).

3988785997198 is a wasteful number, since it uses less digits than its factorization.

3988785997198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872091.

The product of its digits is 19752284160, while the sum is 91.

The spelling of 3988785997198 in words is "three trillion, nine hundred eighty-eight billion, seven hundred eighty-five million, nine hundred ninety-seven thousand, one hundred ninety-eight".