195163972274 has 32 divisors (see below), whose sum is σ = 299915986176. Its totient is φ = 95205559680.

The previous prime is 195163972253. The next prime is 195163972337. The reversal of 195163972274 is 472279361591.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48461849 + ... + 48465875.

It is an arithmetic number, because the mean of its divisors is an integer number (9372374568).

Almost surely, 2^195163972274 is an apocalyptic number.

195163972274 is a deficient number, since it is larger than the sum of its proper divisors (104752013902).

195163972274 is a wasteful number, since it uses less digits than its factorization.

195163972274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570.

The product of its digits is 5715360, while the sum is 56.

The spelling of 195163972274 in words is "one hundred ninety-five billion, one hundred sixty-three million, nine hundred seventy-two thousand, two hundred seventy-four".