198949256084 has 6 divisors (see below), whose sum is σ = 348161198154. Its totient is φ = 99474628040.

The previous prime is 198949256053. The next prime is 198949256153. The reversal of 198949256084 is 480652949891.

It is a happy number.

198949256084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 169200595600 + 29748660484 = 411340^2 + 172478^2 .

It is a super-2 number, since 2×198949256084² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198949256084.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 24868657007 + ... + 24868657014.

It is an arithmetic number, because the mean of its divisors is an integer number (58026866359).

Almost surely, 2^198949256084 is an apocalyptic number.

It is an amenable number.

198949256084 is a deficient number, since it is larger than the sum of its proper divisors (149211942070).

198949256084 is a wasteful number, since it uses less digits than its factorization.

198949256084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49737314025 (or 49737314023 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 65.

The spelling of 198949256084 in words is "one hundred ninety-eight billion, nine hundred forty-nine million, two hundred fifty-six thousand, eighty-four".