398553355893 has 48 divisors (see below), whose sum is σ = 674588597760. Its totient is φ = 206970876000.

The previous prime is 398553355891. The next prime is 398553355897.

398553355893 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 398553355893 - 2¹ = 398553355891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398553355891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4938718 + ... + 5018768.

It is an arithmetic number, because the mean of its divisors is an integer number (14053929120).

Almost surely, 2^398553355893 is an apocalyptic number.

398553355893 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

398553355893 is a deficient number, since it is larger than the sum of its proper divisors (276035241867).

398553355893 is a wasteful number, since it uses less digits than its factorization.

398553355893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83158 (or 83151 counting only the distinct ones).

The product of its digits is 262440000, while the sum is 66.

The spelling of 398553355893 in words is "three hundred ninety-eight billion, five hundred fifty-three million, three hundred fifty-five thousand, eight hundred ninety-three".