212456683615 has 8 divisors (see below), whose sum is σ = 278125113168. Its totient is φ = 154513951680.

The previous prime is 212456683577. The next prime is 212456683619. The reversal of 212456683615 is 516386654212.

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

It is not a de Polignac number, because 212456683615 - 2¹⁷ = 212456552543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212456683619) 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, 1931424342 + ... + 1931424451.

It is an arithmetic number, because the mean of its divisors is an integer number (34765639146).

Almost surely, 2^212456683615 is an apocalyptic number.

212456683615 is a deficient number, since it is larger than the sum of its proper divisors (65668429553).

212456683615 is a wasteful number, since it uses less digits than its factorization.

212456683615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862848809.

The product of its digits is 2073600, while the sum is 49.

The spelling of 212456683615 in words is "two hundred twelve billion, four hundred fifty-six million, six hundred eighty-three thousand, six hundred fifteen".