197723470947 has 16 divisors (see below), whose sum is σ = 266980846080. Its totient is φ = 130148468352.

The previous prime is 197723470913. The next prime is 197723470957. The reversal of 197723470947 is 749074327791.

It is a happy number.

197723470947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197723470947 - 2¹⁴ = 197723454563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197723470957) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 845247 + ... + 1053512.

It is an arithmetic number, because the mean of its divisors is an integer number (16686302880).

Almost surely, 2^197723470947 is an apocalyptic number.

197723470947 is a deficient number, since it is larger than the sum of its proper divisors (69257375133).

197723470947 is a wasteful number, since it uses less digits than its factorization.

197723470947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899202.

The product of its (nonzero) digits is 18670176, while the sum is 60.

The spelling of 197723470947 in words is "one hundred ninety-seven billion, seven hundred twenty-three million, four hundred seventy thousand, nine hundred forty-seven".