398321123893 has 32 divisors (see below), whose sum is σ = 508295208960. Its totient is φ = 303079613760.

The previous prime is 398321123881. The next prime is 398321123917.

398321123893 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 398321123893 - 2²⁹ = 397784252981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 398321123893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398321120893) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 13987996 + ... + 14016442.

It is an arithmetic number, because the mean of its divisors is an integer number (15884225280).

Almost surely, 2^398321123893 is an apocalyptic number.

It is an amenable number.

398321123893 is a deficient number, since it is larger than the sum of its proper divisors (109974085067).

398321123893 is a wasteful number, since it uses less digits than its factorization.

398321123893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32737.

The product of its digits is 1679616, while the sum is 52.

The spelling of 398321123893 in words is "three hundred ninety-eight billion, three hundred twenty-one million, one hundred twenty-three thousand, eight hundred ninety-three".