197752270849 has 4 divisors (see below), whose sum is σ = 226002595264. Its totient is φ = 169501946436.

The previous prime is 197752270843. The next prime is 197752270897. The reversal of 197752270849 is 948072257791.

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, and also an emirpimes, since its reverse is a distinct semiprime: 948072257791 = 149 ⋅6362901059.

It is a cyclic number.

It is not a de Polignac number, because 197752270849 - 2¹¹ = 197752268801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197752270843) 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, 14125162197 + ... + 14125162210.

It is an arithmetic number, because the mean of its divisors is an integer number (56500648816).

Almost surely, 2^197752270849 is an apocalyptic number.

It is an amenable number.

197752270849 is a deficient number, since it is larger than the sum of its proper divisors (28250324415).

197752270849 is an equidigital number, since it uses as much as digits as its factorization.

197752270849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28250324414.

The product of its (nonzero) digits is 17781120, while the sum is 61.

The spelling of 197752270849 in words is "one hundred ninety-seven billion, seven hundred fifty-two million, two hundred seventy thousand, eight hundred forty-nine".