197836364944 has 135 divisors (see below), whose sum is σ = 422743893273. Its totient is φ = 89669260800.

The previous prime is 197836364933. The next prime is 197836364953. The reversal of 197836364944 is 449463638791.

The square root of 197836364944 is 444788.

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

It can be written as a sum of positive squares in only one way, i.e., 154024851600 + 43811513344 = 392460^2 + 209312^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 937612999 + ... + 937613209.

Almost surely, 2^197836364944 is an apocalyptic number.

197836364944 is the 444788-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197836364944

197836364944 is an abundant number, since it is smaller than the sum of its proper divisors (224907528329).

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

197836364944 is an equidigital number, since it uses as much as digits as its factorization.

197836364944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 261 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 64.

Multiplying 197836364944 by its sum of digits (64), we get a square (12661527356416 = 3558304²).

The spelling of 197836364944 in words is "one hundred ninety-seven billion, eight hundred thirty-six million, three hundred sixty-four thousand, nine hundred forty-four".