298621223999999 has 4 divisors (see below), whose sum is σ = 298623868627440. Its totient is φ = 298618579372560.

The previous prime is 298621223999981. The next prime is 298621224000013. The reversal of 298621223999999 is 999999322126892.

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 298621223999999 - 2²⁰ = 298621222951423 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 (298621223999299) 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, 1322144339 + ... + 1322370180.

It is an arithmetic number, because the mean of its divisors is an integer number (74655967156860).

Almost surely, 2^{298621223999999} is an apocalyptic number.

298621223999999 is a deficient number, since it is larger than the sum of its proper divisors (2644627441).

298621223999999 is a wasteful number, since it uses less digits than its factorization.

298621223999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644627440.

The product of its digits is 11019960576, while the sum is 89.

The spelling of 298621223999999 in words is "two hundred ninety-eight trillion, six hundred twenty-one billion, two hundred twenty-three million, nine hundred ninety-nine thousand, nine hundred ninety-nine".