198392857325 has 12 divisors (see below), whose sum is σ = 264930769908. Its totient is φ = 146505494400.

The previous prime is 198392857307. The next prime is 198392857337. The reversal of 198392857325 is 523758293891.

It can be written as a sum of positive squares in 6 ways, for example, as 3765417769 + 194627439556 = 61363^2 + 441166^2 .

It is not a de Polignac number, because 198392857325 - 2²⁶ = 198325748461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305219456 + ... + 305220105.

It is an arithmetic number, because the mean of its divisors is an integer number (22077564159).

Almost surely, 2^198392857325 is an apocalyptic number.

It is an amenable number.

198392857325 is a deficient number, since it is larger than the sum of its proper divisors (66537912583).

198392857325 is a wasteful number, since it uses less digits than its factorization.

198392857325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610439584 (or 610439579 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 62.

The spelling of 198392857325 in words is "one hundred ninety-eight billion, three hundred ninety-two million, eight hundred fifty-seven thousand, three hundred twenty-five".