398882859091 has 8 divisors (see below), whose sum is σ = 420165695120. Its totient is φ = 377628923232.

The previous prime is 398882859077. The next prime is 398882859097. The reversal of 398882859091 is 190958288893.

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

It is a cyclic number.

It is not a de Polignac number, because 398882859091 - 2⁵ = 398882859059 is a prime.

It is a super-2 number, since 2×398882859091² (a number of 24 digits) contains 22 as substring.

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 398882859091.

It is not an unprimeable number, because it can be changed into a prime (398882859097) 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, 7196700 + ... + 7251913.

It is an arithmetic number, because the mean of its divisors is an integer number (52520711890).

Almost surely, 2^398882859091 is an apocalyptic number.

398882859091 is a deficient number, since it is larger than the sum of its proper divisors (21282836029).

398882859091 is a wasteful number, since it uses less digits than its factorization.

398882859091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14450085.

The product of its (nonzero) digits is 89579520, while the sum is 70.

The spelling of 398882859091 in words is "three hundred ninety-eight billion, eight hundred eighty-two million, eight hundred fifty-nine thousand, ninety-one".