3988319411897 has 8 divisors (see below), whose sum is σ = 4086726451080. Its totient is φ = 3889966227840.

The previous prime is 3988319411873. The next prime is 3988319411903. The reversal of 3988319411897 is 7981149138893.

It can be written as a sum of positive squares in 4 ways, for example, as 13316236816 + 3975003175081 = 115396^2 + 1993741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3988319411897 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 3988319411897.

It is not an unprimeable number, because it can be changed into a prime (3988319711897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13313822 + ... + 13610087.

It is an arithmetic number, because the mean of its divisors is an integer number (510840806385).

Almost surely, 2^{3988319411897} is an apocalyptic number.

It is an amenable number.

3988319411897 is a deficient number, since it is larger than the sum of its proper divisors (98407039183).

3988319411897 is a wasteful number, since it uses less digits than its factorization.

3988319411897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26927563.

The product of its digits is 94058496, while the sum is 71.

The spelling of 3988319411897 in words is "three trillion, nine hundred eighty-eight billion, three hundred nineteen million, four hundred eleven thousand, eight hundred ninety-seven".