211712313867 has 8 divisors (see below), whose sum is σ = 283280553024. Its totient is φ = 140642808648.

The previous prime is 211712313833. The next prime is 211712313887. The reversal of 211712313867 is 768313217112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211712313867 - 2¹¹ = 211712311819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211712313817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124682493 + ... + 124684190.

It is an arithmetic number, because the mean of its divisors is an integer number (35410069128).

Almost surely, 2^211712313867 is an apocalyptic number.

211712313867 is a deficient number, since it is larger than the sum of its proper divisors (71568239157).

211712313867 is a wasteful number, since it uses less digits than its factorization.

211712313867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249366969.

The product of its digits is 84672, while the sum is 42.

The spelling of 211712313867 in words is "two hundred eleven billion, seven hundred twelve million, three hundred thirteen thousand, eight hundred sixty-seven".