212765957683 has 4 divisors (see below), whose sum is σ = 212787747160. Its totient is φ = 212744168208.

The previous prime is 212765957633. The next prime is 212765957743. The reversal of 212765957683 is 386759567212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212765957683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212765957633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10880085 + ... + 10899622.

It is an arithmetic number, because the mean of its divisors is an integer number (53196936790).

Almost surely, 2^212765957683 is an apocalyptic number.

212765957683 is a deficient number, since it is larger than the sum of its proper divisors (21789477).

212765957683 is an equidigital number, since it uses as much as digits as its factorization.

212765957683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21789476.

The product of its digits is 38102400, while the sum is 61.

The spelling of 212765957683 in words is "two hundred twelve billion, seven hundred sixty-five million, nine hundred fifty-seven thousand, six hundred eighty-three".