197500775472 has 640 divisors, whose sum is σ = 787449600000. Its totient is φ = 45717073920.

The previous prime is 197500775431. The next prime is 197500775519. The reversal of 197500775472 is 274577005791.

197500775472 is a `hidden beast` number, since 1 + 97 + 5 + 0 + 0 + 7 + 7 + 547 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 127 ways as a sum of consecutive naturals, for example, 12532654 + ... + 12548402.

It is an arithmetic number, because the mean of its divisors is an integer number (1230390000).

Almost surely, 2^197500775472 is an apocalyptic number.

197500775472 is a gapful number since it is divisible by the number (12) 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 197500775472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393724800000).

197500775472 is an abundant number, since it is smaller than the sum of its proper divisors (589948824528).

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

197500775472 is a wasteful number, since it uses less digits than its factorization.

197500775472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826 (or 15814 counting only the distinct ones).

The product of its (nonzero) digits is 4321800, while the sum is 54.

The spelling of 197500775472 in words is "one hundred ninety-seven billion, five hundred million, seven hundred seventy-five thousand, four hundred seventy-two".