812008081197 has 24 divisors (see below), whose sum is σ = 1178204227200. Its totient is φ = 538891431360.

The previous prime is 812008081099. The next prime is 812008081211. The reversal of 812008081197 is 791180800218.

It is a happy number.

It is not a de Polignac number, because 812008081197 - 2⁸ = 812008080941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812008083197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23417929 + ... + 23452577.

It is an arithmetic number, because the mean of its divisors is an integer number (49091842800).

Almost surely, 2^812008081197 is an apocalyptic number.

It is an amenable number.

812008081197 is a deficient number, since it is larger than the sum of its proper divisors (366196146003).

812008081197 is a wasteful number, since it uses less digits than its factorization.

812008081197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46353 (or 46350 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 45.

The spelling of 812008081197 in words is "eight hundred twelve billion, eight million, eighty-one thousand, one hundred ninety-seven".