197894317056 has 44 divisors (see below), whose sum is σ = 527460512112. Its totient is φ = 65964771328.

The previous prime is 197894317051. The next prime is 197894317099. The reversal of 197894317056 is 650713498791.

It is not an unprimeable number, because it can be changed into a prime (197894317051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32206290 + ... + 32212433.

Almost surely, 2^197894317056 is an apocalyptic number.

197894317056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

197894317056 is an abundant number, since it is smaller than the sum of its proper divisors (329566195056).

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

197894317056 is an equidigital number, since it uses as much as digits as its factorization.

197894317056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64418746 (or 64418728 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 197894317056 in words is "one hundred ninety-seven billion, eight hundred ninety-four million, three hundred seventeen thousand, fifty-six".