197915243328 has 504 divisors, whose sum is σ = 657695001600. Its totient is φ = 56775628800.

The previous prime is 197915243243. The next prime is 197915243353. The reversal of 197915243328 is 823342519791.

197915243328 is a `hidden beast` number, since 1 + 9 + 7 + 91 + 524 + 3 + 3 + 28 = 666.

It is a super-3 number, since 3×197915243328³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 101546098 + ... + 101548046.

It is an arithmetic number, because the mean of its divisors is an integer number (1304950400).

Almost surely, 2^197915243328 is an apocalyptic number.

197915243328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197915243328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328847500800).

197915243328 is an abundant number, since it is smaller than the sum of its proper divisors (459779758272).

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

197915243328 is a wasteful number, since it uses less digits than its factorization.

197915243328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2043 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 197915243328 in words is "one hundred ninety-seven billion, nine hundred fifteen million, two hundred forty-three thousand, three hundred twenty-eight".