198233928554 has 8 divisors (see below), whose sum is σ = 298233240708. Its totient is φ = 98822848320.

The previous prime is 198233928553. The next prime is 198233928583. The reversal of 198233928554 is 455829332891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 180007578529 + 18226350025 = 424273^2 + 135005^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 198233928493 and 198233928502.

It is not an unprimeable number, because it can be changed into a prime (198233928553) 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, 147057137 + ... + 147058484.

Almost surely, 2^198233928554 is an apocalyptic number.

198233928554 is a deficient number, since it is larger than the sum of its proper divisors (99999312154).

198233928554 is a wasteful number, since it uses less digits than its factorization.

198233928554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294115960.

The product of its digits is 18662400, while the sum is 59.

The spelling of 198233928554 in words is "one hundred ninety-eight billion, two hundred thirty-three million, nine hundred twenty-eight thousand, five hundred fifty-four".