398882179993 has 32 divisors (see below), whose sum is σ = 463275417600. Its totient is φ = 339635534400.

The previous prime is 398882179967. The next prime is 398882180003. The reversal of 398882179993 is 399971288893.

It is a cyclic number.

It is not a de Polignac number, because 398882179993 - 2⁹ = 398882179481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398882179933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6441288 + ... + 6502918.

It is an arithmetic number, because the mean of its divisors is an integer number (14477356800).

Almost surely, 2^398882179993 is an apocalyptic number.

It is an amenable number.

398882179993 is a deficient number, since it is larger than the sum of its proper divisors (64393237607).

398882179993 is a wasteful number, since it uses less digits than its factorization.

398882179993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62013.

The product of its digits is 423263232, while the sum is 76.

It can be divided in two parts, 398882 and 179993, that added together give a palindrome (578875).

The spelling of 398882179993 in words is "three hundred ninety-eight billion, eight hundred eighty-two million, one hundred seventy-nine thousand, nine hundred ninety-three".