398183381893 has 16 divisors (see below), whose sum is σ = 436877064000. Its totient is φ = 359906202880.

The previous prime is 398183381879. The next prime is 398183381899.

398183381893 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398183381893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398183381899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17412255 + ... + 17435107.

It is an arithmetic number, because the mean of its divisors is an integer number (27304816500).

Almost surely, 2^398183381893 is an apocalyptic number.

It is an amenable number.

398183381893 is a deficient number, since it is larger than the sum of its proper divisors (38693682107).

398183381893 is a wasteful number, since it uses less digits than its factorization.

398183381893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31892.

The product of its digits is 26873856, while the sum is 64.

The spelling of 398183381893 in words is "three hundred ninety-eight billion, one hundred eighty-three million, three hundred eighty-one thousand, eight hundred ninety-three".