398206045913 has 8 divisors (see below), whose sum is σ = 436928550408. Its totient is φ = 360639437184.

The previous prime is 398206045871. The next prime is 398206045997. The reversal of 398206045913 is 319540602893.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 133380535369 + 264825510544 = 365213^2 + 514612^2 .

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

It is not a de Polignac number, because 398206045913 - 2³⁶ = 329486569177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398206005913) 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, 288973220 + ... + 288974597.

It is an arithmetic number, because the mean of its divisors is an integer number (54616068801).

Almost surely, 2^398206045913 is an apocalyptic number.

It is an amenable number.

398206045913 is a deficient number, since it is larger than the sum of its proper divisors (38722504495).

398206045913 is a wasteful number, since it uses less digits than its factorization.

398206045913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577947883.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 398206045913 in words is "three hundred ninety-eight billion, two hundred six million, forty-five thousand, nine hundred thirteen".