812388884697 has 16 divisors (see below), whose sum is σ = 1296119018880. Its totient is φ = 499931621136.

The previous prime is 812388884641. The next prime is 812388884717. The reversal of 812388884697 is 796488883218.

812388884697 is a `hidden beast` number, since 8 + 1 + 2 + 3 + 88 + 88 + 469 + 7 = 666.

It is not a de Polignac number, because 812388884697 - 2⁸ = 812388884441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (812388814697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157248773 + ... + 1157249474.

It is an arithmetic number, because the mean of its divisors is an integer number (81007438680).

Almost surely, 2^812388884697 is an apocalyptic number.

It is an amenable number.

812388884697 is a deficient number, since it is larger than the sum of its proper divisors (483730134183).

812388884697 is a wasteful number, since it uses less digits than its factorization.

812388884697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314498269 (or 2314498263 counting only the distinct ones).

The product of its digits is 297271296, while the sum is 72.

The spelling of 812388884697 in words is "eight hundred twelve billion, three hundred eighty-eight million, eight hundred eighty-four thousand, six hundred ninety-seven".