197725980479 has 4 divisors (see below), whose sum is σ = 200677114584. Its totient is φ = 194774846376.

The previous prime is 197725980467. The next prime is 197725980509. The reversal of 197725980479 is 974089527791.

197725980479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 197725980479 - 2¹⁶ = 197725914943 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 (197725980409) 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 3 ways as a sum of consecutive naturals, for example, 1475566952 + ... + 1475567085.

It is an arithmetic number, because the mean of its divisors is an integer number (50169278646).

Almost surely, 2^197725980479 is an apocalyptic number.

197725980479 is a deficient number, since it is larger than the sum of its proper divisors (2951134105).

197725980479 is an equidigital number, since it uses as much as digits as its factorization.

197725980479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951134104.

The product of its (nonzero) digits is 80015040, while the sum is 68.

The spelling of 197725980479 in words is "one hundred ninety-seven billion, seven hundred twenty-five million, nine hundred eighty thousand, four hundred seventy-nine".