197374867977 has 16 divisors (see below), whose sum is σ = 313838300160. Its totient is φ = 107881915152.

The previous prime is 197374867961. The next prime is 197374868027. The reversal of 197374867977 is 779768473791.

It is not a de Polignac number, because 197374867977 - 2⁴ = 197374867961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197374867899 and 197374867908.

It is not an unprimeable number, because it can be changed into a prime (197374867577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204321327 + ... + 204322292.

It is an arithmetic number, because the mean of its divisors is an integer number (19614893760).

Almost surely, 2^197374867977 is an apocalyptic number.

It is an amenable number.

197374867977 is a deficient number, since it is larger than the sum of its proper divisors (116463432183).

197374867977 is a wasteful number, since it uses less digits than its factorization.

197374867977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408643652.

The product of its digits is 784147392, while the sum is 75.

The spelling of 197374867977 in words is "one hundred ninety-seven billion, three hundred seventy-four million, eight hundred sixty-seven thousand, nine hundred seventy-seven".