212866276317 has 32 divisors (see below), whose sum is σ = 292863707136. Its totient is φ = 137446982400.

The previous prime is 212866276309. The next prime is 212866276327. The reversal of 212866276317 is 713672668212.

It is a happy number.

It is not a de Polignac number, because 212866276317 - 2³ = 212866276309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212866276317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212866276327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26240092 + ... + 26248202.

It is an arithmetic number, because the mean of its divisors is an integer number (9151990848).

Almost surely, 2^212866276317 is an apocalyptic number.

It is an amenable number.

212866276317 is a deficient number, since it is larger than the sum of its proper divisors (79997430819).

212866276317 is a wasteful number, since it uses less digits than its factorization.

212866276317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9841.

The product of its digits is 2032128, while the sum is 51.

The spelling of 212866276317 in words is "two hundred twelve billion, eight hundred sixty-six million, two hundred seventy-six thousand, three hundred seventeen".