398265360859 has 8 divisors (see below), whose sum is σ = 399183840000. Its totient is φ = 397347728232.

The previous prime is 398265360841. The next prime is 398265360869. The reversal of 398265360859 is 958063562893.

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 398265360859 - 2¹⁵ = 398265328091 is a prime.

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 398265360859.

It is not an unprimeable number, because it can be changed into a prime (398265360869) 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 7 ways as a sum of consecutive naturals, for example, 735282 + ... + 1156360.

It is an arithmetic number, because the mean of its divisors is an integer number (49897980000).

Almost surely, 2^398265360859 is an apocalyptic number.

398265360859 is a deficient number, since it is larger than the sum of its proper divisors (918479141).

398265360859 is a wasteful number, since it uses less digits than its factorization.

398265360859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423257.

The product of its (nonzero) digits is 83980800, while the sum is 64.

The spelling of 398265360859 in words is "three hundred ninety-eight billion, two hundred sixty-five million, three hundred sixty thousand, eight hundred fifty-nine".