398566179796 has 12 divisors (see below), whose sum is σ = 702171962100. Its totient is φ = 197945619200.

The previous prime is 398566179721. The next prime is 398566179811. The reversal of 398566179796 is 697971665893.

It can be written as a sum of positive squares in 2 ways, for example, as 148402152900 + 250164026896 = 385230^2 + 500164^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 334367005 + ... + 334368196.

It is an arithmetic number, because the mean of its divisors is an integer number (58514330175).

Almost surely, 2^398566179796 is an apocalyptic number.

It is an amenable number.

398566179796 is a deficient number, since it is larger than the sum of its proper divisors (303605782304).

398566179796 is a wasteful number, since it uses less digits than its factorization.

398566179796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668735354 (or 668735352 counting only the distinct ones).

The product of its digits is 925888320, while the sum is 76.

The spelling of 398566179796 in words is "three hundred ninety-eight billion, five hundred sixty-six million, one hundred seventy-nine thousand, seven hundred ninety-six".