198730507264 has 33 divisors (see below), whose sum is σ = 397295460571. Its totient is φ = 99358120960.

The previous prime is 198730507243. The next prime is 198730507279. The reversal of 198730507264 is 462705037891.

The square root of 198730507264 is 445792.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14258379 + ... + 14272309.

It is a 2-persistent number, because it is pandigital, and so is 2⋅198730507264 = 397461014528, but 3⋅198730507264 = 596191521792 is not.

Almost surely, 2^198730507264 is an apocalyptic number.

198730507264 is the 445792-nd square number.

It is an amenable number.

198730507264 is a deficient number, since it is larger than the sum of its proper divisors (198564953307).

198730507264 is an frugal number, since it uses more digits than its factorization.

198730507264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27882 (or 13933 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 198730507264 in words is "one hundred ninety-eight billion, seven hundred thirty million, five hundred seven thousand, two hundred sixty-four".