198006881750925 has 24 divisors (see below), whose sum is σ = 352553791509024. Its totient is φ = 97480311015360.

The previous prime is 198006881750897. The next prime is 198006881750927. The reversal of 198006881750925 is 529057188600891.

It is not a de Polignac number, because 198006881750925 - 2⁹ = 198006881750413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198006881750925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198006881750927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101541989667 + ... + 101541991616.

It is an arithmetic number, because the mean of its divisors is an integer number (14689741312876).

Almost surely, 2^{198006881750925} is an apocalyptic number.

198006881750925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198006881750925 is a deficient number, since it is larger than the sum of its proper divisors (154546909758099).

198006881750925 is a wasteful number, since it uses less digits than its factorization.

198006881750925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203083981309 (or 203083981304 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 69.

The spelling of 198006881750925 in words is "one hundred ninety-eight trillion, six billion, eight hundred eighty-one million, seven hundred fifty thousand, nine hundred twenty-five".