197079206249 has 4 divisors (see below), whose sum is σ = 197082144336. Its totient is φ = 197076268164.

The previous prime is 197079206237. The next prime is 197079206273. The reversal of 197079206249 is 942602970791.

197079206249 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 197079206249 - 2⁸ = 197079205993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197079206194 and 197079206203.

It is not an unprimeable number, because it can be changed into a prime (197079206209) 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, 1366019 + ... + 1503384.

It is an arithmetic number, because the mean of its divisors is an integer number (49270536084).

Almost surely, 2^197079206249 is an apocalyptic number.

It is an amenable number.

197079206249 is a deficient number, since it is larger than the sum of its proper divisors (2938087).

197079206249 is an equidigital number, since it uses as much as digits as its factorization.

197079206249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938086.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The spelling of 197079206249 in words is "one hundred ninety-seven billion, seventy-nine million, two hundred six thousand, two hundred forty-nine".