298421476991 has 4 divisors (see below), whose sum is σ = 325550702184. Its totient is φ = 271292251800.

The previous prime is 298421476987. The next prime is 298421477017. The reversal of 298421476991 is 199674124892.

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 298421476991 - 2² = 298421476987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298421476961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13564612580 + ... + 13564612601.

It is an arithmetic number, because the mean of its divisors is an integer number (81387675546).

Almost surely, 2^298421476991 is an apocalyptic number.

298421476991 is a deficient number, since it is larger than the sum of its proper divisors (27129225193).

298421476991 is a wasteful number, since it uses less digits than its factorization.

298421476991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27129225192.

The product of its digits is 15676416, while the sum is 62.

The spelling of 298421476991 in words is "two hundred ninety-eight billion, four hundred twenty-one million, four hundred seventy-six thousand, nine hundred ninety-one".