398878098163 has 16 divisors (see below), whose sum is σ = 433956812256. Its totient is φ = 365162434560.

The previous prime is 398878098097. The next prime is 398878098187. The reversal of 398878098163 is 361890878893.

It is a cyclic number.

It is not a de Polignac number, because 398878098163 - 2²¹ = 398876001011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 398878098092 and 398878098101.

It is not an unprimeable number, because it can be changed into a prime (398878092163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955906 + ... + 1308247.

It is an arithmetic number, because the mean of its divisors is an integer number (27122300766).

Almost surely, 2^398878098163 is an apocalyptic number.

398878098163 is a deficient number, since it is larger than the sum of its proper divisors (35078714093).

398878098163 is a wasteful number, since it uses less digits than its factorization.

398878098163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264454.

The product of its (nonzero) digits is 125411328, while the sum is 70.

The spelling of 398878098163 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, ninety-eight thousand, one hundred sixty-three".