197464233779568 has 1200 divisors, whose sum is σ = 704464432104960. Its totient is φ = 52944133552128.

The previous prime is 197464233779537. The next prime is 197464233779573. The reversal of 197464233779568 is 865977332464791.

197464233779568 is a `hidden beast` number, since 1 + 9 + 7 + 4 + 6 + 42 + 3 + 3 + 7 + 7 + 9 + 568 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 132793700521 + ... + 132793702007.

Almost surely, 2^{197464233779568} is an apocalyptic number.

197464233779568 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 197464233779568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352232216052480).

197464233779568 is an abundant number, since it is smaller than the sum of its proper divisors (507000198325392).

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

197464233779568 is a wasteful number, since it uses less digits than its factorization.

197464233779568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009 (or 1959 counting only the distinct ones).

The product of its digits is 11522165760, while the sum is 81.

The spelling of 197464233779568 in words is "one hundred ninety-seven trillion, four hundred sixty-four billion, two hundred thirty-three million, seven hundred seventy-nine thousand, five hundred sixty-eight".