197143317270 has 96 divisors (see below), whose sum is σ = 519626016000. Its totient is φ = 51850274112.

The previous prime is 197143317233. The next prime is 197143317299. The reversal of 197143317270 is 72713341791.

197143317270 is a `hidden beast` number, since 19 + 71 + 433 + 1 + 72 + 70 = 666.

197143317270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4452501 + ... + 4496559.

It is an arithmetic number, because the mean of its divisors is an integer number (5412771000).

Almost surely, 2^197143317270 is an apocalyptic number.

197143317270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 197143317270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259813008000).

197143317270 is an abundant number, since it is smaller than the sum of its proper divisors (322482698730).

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

197143317270 is a wasteful number, since it uses less digits than its factorization.

197143317270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44754 (or 44751 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The spelling of 197143317270 in words is "one hundred ninety-seven billion, one hundred forty-three million, three hundred seventeen thousand, two hundred seventy".