198875408254 has 4 divisors (see below), whose sum is σ = 298313112384. Its totient is φ = 99437704126.

The previous prime is 198875408243. The next prime is 198875408273. The reversal of 198875408254 is 452804578891.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 198875408192 and 198875408201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49718852062 + ... + 49718852065.

It is an arithmetic number, because the mean of its divisors is an integer number (74578278096).

Almost surely, 2^198875408254 is an apocalyptic number.

198875408254 is a deficient number, since it is larger than the sum of its proper divisors (99437704130).

198875408254 is an equidigital number, since it uses as much as digits as its factorization.

198875408254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99437704129.

The product of its (nonzero) digits is 25804800, while the sum is 61.

The spelling of 198875408254 in words is "one hundred ninety-eight billion, eight hundred seventy-five million, four hundred eight thousand, two hundred fifty-four".