198650272804 has 81 divisors (see below), whose sum is σ = 378275142483. Its totient is φ = 91265507136.

The previous prime is 198650272801. The next prime is 198650272813. The reversal of 198650272804 is 408272056891.

The square root of 198650272804 is 445702.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1656327204 + 196993945600 = 40698^2 + 443840^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198650272801) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 626656854 + ... + 626657170.

Almost surely, 2^198650272804 is an apocalyptic number.

198650272804 is the 445702-nd square number.

It is an amenable number.

198650272804 is a deficient number, since it is larger than the sum of its proper divisors (179624869679).

198650272804 is an equidigital number, since it uses as much as digits as its factorization.

198650272804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 198650272804 in words is "one hundred ninety-eight billion, six hundred fifty million, two hundred seventy-two thousand, eight hundred four".