398830786171 has 8 divisors (see below), whose sum is σ = 425572866320. Its totient is φ = 372663804672.

The previous prime is 398830786153. The next prime is 398830786181. The reversal of 398830786171 is 171687038893.

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 398830786171 - 2⁵ = 398830786139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398830786111) 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, 143773230 + ... + 143776003.

It is an arithmetic number, because the mean of its divisors is an integer number (53196608290).

Almost surely, 2^398830786171 is an apocalyptic number.

398830786171 is a deficient number, since it is larger than the sum of its proper divisors (26742080149).

398830786171 is a wasteful number, since it uses less digits than its factorization.

398830786171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287549325.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 398830786171 in words is "three hundred ninety-eight billion, eight hundred thirty million, seven hundred eighty-six thousand, one hundred seventy-one".