197275870855 has 8 divisors (see below), whose sum is σ = 270549765792. Its totient is φ = 135274882848.

The previous prime is 197275870819. The next prime is 197275870921. The reversal of 197275870855 is 558078572791.

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

It is not a de Polignac number, because 197275870855 - 2²¹ = 197273773703 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 2818226692 + ... + 2818226761.

It is an arithmetic number, because the mean of its divisors is an integer number (33818720724).

Almost surely, 2^197275870855 is an apocalyptic number.

197275870855 is a deficient number, since it is larger than the sum of its proper divisors (73273894937).

197275870855 is an equidigital number, since it uses as much as digits as its factorization.

197275870855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5636453465.

The product of its (nonzero) digits is 49392000, while the sum is 64.

The spelling of 197275870855 in words is "one hundred ninety-seven billion, two hundred seventy-five million, eight hundred seventy thousand, eight hundred fifty-five".