197317094287 has 8 divisors (see below), whose sum is σ = 200005029504. Its totient is φ = 194636554968.

The previous prime is 197317094281. The next prime is 197317094311. The reversal of 197317094287 is 782490713791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197317094287 - 2²³ = 197308705679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197317094281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1795243 + ... + 1901980.

It is an arithmetic number, because the mean of its divisors is an integer number (25000628688).

Almost surely, 2^197317094287 is an apocalyptic number.

197317094287 is a deficient number, since it is larger than the sum of its proper divisors (2687935217).

197317094287 is an equidigital number, since it uses as much as digits as its factorization.

197317094287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697949.

The product of its (nonzero) digits is 5334336, while the sum is 58.

The spelling of 197317094287 in words is "one hundred ninety-seven billion, three hundred seventeen million, ninety-four thousand, two hundred eighty-seven".