198706887050 has 96 divisors (see below), whose sum is σ = 431432386560. Its totient is φ = 66684139200.

The previous prime is 198706887019. The next prime is 198706887053. The reversal of 198706887050 is 50788607891.

It is a super-2 number, since 2×198706887050² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198706887053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3425387 + ... + 3482913.

It is an arithmetic number, because the mean of its divisors is an integer number (4494087360).

Almost surely, 2^198706887050 is an apocalyptic number.

198706887050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198706887050 is an abundant number, since it is smaller than the sum of its proper divisors (232725499510).

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

198706887050 is a wasteful number, since it uses less digits than its factorization.

198706887050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57756 (or 57751 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 59.

The spelling of 198706887050 in words is "one hundred ninety-eight billion, seven hundred six million, eight hundred eighty-seven thousand, fifty".