298876555421 has 4 divisors (see below), whose sum is σ = 298885138752. Its totient is φ = 298867972092.

The previous prime is 298876555391. The next prime is 298876555459. The reversal of 298876555421 is 124555678892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 298876555421 - 2³⁴ = 281696686237 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 (298876555721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4239221 + ... + 4309146.

It is an arithmetic number, because the mean of its divisors is an integer number (74721284688).

Almost surely, 2^298876555421 is an apocalyptic number.

It is an amenable number.

298876555421 is a deficient number, since it is larger than the sum of its proper divisors (8583331).

298876555421 is an equidigital number, since it uses as much as digits as its factorization.

298876555421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8583330.

The product of its digits is 48384000, while the sum is 62.

The spelling of 298876555421 in words is "two hundred ninety-eight billion, eight hundred seventy-six million, five hundred fifty-five thousand, four hundred twenty-one".