197172306994088 has 8 divisors (see below), whose sum is σ = 369698075613930. Its totient is φ = 98586153497040.

The previous prime is 197172306994087. The next prime is 197172306994099. The reversal of 197172306994088 is 880499603271791.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 147437343494884 + 49734963499204 = 12142378^2 + 7052302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (197172306994087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12323269187123 + ... + 12323269187138.

Almost surely, 2^{197172306994088} is an apocalyptic number.

It is an amenable number.

197172306994088 is a deficient number, since it is larger than the sum of its proper divisors (172525768619842).

197172306994088 is a wasteful number, since it uses less digits than its factorization.

197172306994088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24646538374267 (or 24646538374263 counting only the distinct ones).

The product of its (nonzero) digits is 329204736, while the sum is 74.

The spelling of 197172306994088 in words is "one hundred ninety-seven trillion, one hundred seventy-two billion, three hundred six million, nine hundred ninety-four thousand, eighty-eight".