398178811608 has 16 divisors (see below), whose sum is σ = 995447029080. Its totient is φ = 132726270528.

The previous prime is 398178811601. The next prime is 398178811631. The reversal of 398178811608 is 806118871893.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398178811601) 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 3 ways as a sum of consecutive naturals, for example, 8295391885 + ... + 8295391932.

Almost surely, 2^398178811608 is an apocalyptic number.

It is an amenable number.

398178811608 is an abundant number, since it is smaller than the sum of its proper divisors (597268217472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398178811608 is a wasteful number, since it uses less digits than its factorization.

398178811608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16590783826 (or 16590783822 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 60.

The spelling of 398178811608 in words is "three hundred ninety-eight billion, one hundred seventy-eight million, eight hundred eleven thousand, six hundred eight".