298179999871 has 4 divisors (see below), whose sum is σ = 321116922952. Its totient is φ = 275243076792.

The previous prime is 298179999809. The next prime is 298179999907. The reversal of 298179999871 is 178999971892.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 298179999871 - 2¹⁵ = 298179967103 is a prime.

It is a super-2 number, since 2×298179999871² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 298179999791 and 298179999800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298179999071) 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, 11468461521 + ... + 11468461546.

It is an arithmetic number, because the mean of its divisors is an integer number (80279230738).

Almost surely, 2^298179999871 is an apocalyptic number.

298179999871 is a deficient number, since it is larger than the sum of its proper divisors (22936923081).

298179999871 is a wasteful number, since it uses less digits than its factorization.

298179999871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22936923080.

The product of its digits is 370355328, while the sum is 79.

The spelling of 298179999871 in words is "two hundred ninety-eight billion, one hundred seventy-nine million, nine hundred ninety-nine thousand, eight hundred seventy-one".