198752437689192 has 80 divisors (see below), whose sum is σ = 561893574036960. Its totient is φ = 65631646067616.

The previous prime is 198752437689167. The next prime is 198752437689203. The reversal of 198752437689192 is 291986734257891.

It is a happy number.

198752437689192 is a `hidden beast` number, since 1 + 9 + 8 + 7 + 5 + 2 + 437 + 6 + 8 + 91 + 92 = 666.

It is a super-2 number, since 2×198752437689192² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 1433186388 + ... + 1433325059.

It is an arithmetic number, because the mean of its divisors is an integer number (7023669675462).

Almost surely, 2^{198752437689192} is an apocalyptic number.

198752437689192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198752437689192 is an abundant number, since it is smaller than the sum of its proper divisors (363141136347768).

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

198752437689192 is a wasteful number, since it uses less digits than its factorization.

198752437689192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866511572 (or 2866511559 counting only the distinct ones).

The product of its digits is 3292047360, while the sum is 81.

The spelling of 198752437689192 in words is "one hundred ninety-eight trillion, seven hundred fifty-two billion, four hundred thirty-seven million, six hundred eighty-nine thousand, one hundred ninety-two".