198025453692 has 72 divisors (see below), whose sum is σ = 549420493440. Its totient is φ = 59639548320.

The previous prime is 198025453673. The next prime is 198025453699. The reversal of 198025453692 is 296354520891.

198025453692 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 2 + 545 + 3 + 6 + 92 = 666.

198025453692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×198025453692³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198025453699) 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 23 ways as a sum of consecutive naturals, for example, 1469392 + ... + 1598487.

Almost surely, 2^198025453692 is an apocalyptic number.

198025453692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198025453692 is an abundant number, since it is smaller than the sum of its proper divisors (351395039748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198025453692 is a wasteful number, since it uses less digits than its factorization.

198025453692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068063 (or 3068058 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 198025453692 in words is "one hundred ninety-eight billion, twenty-five million, four hundred fifty-three thousand, six hundred ninety-two".