212068638783 has 10 divisors (see below), whose sum is σ = 316793892624. Its totient is φ = 141379092468.

The previous prime is 212068638781. The next prime is 212068638797. The reversal of 212068638783 is 387836860212.

212068638783 is a `hidden beast` number, since 2 + 120 + 68 + 6 + 387 + 83 = 666.

It is not a de Polignac number, because 212068638783 - 2¹ = 212068638781 is a prime.

It is a super-3 number, since 3×212068638783³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212068638781) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1309065591 + ... + 1309065752.

Almost surely, 2^212068638783 is an apocalyptic number.

212068638783 is a deficient number, since it is larger than the sum of its proper divisors (104725253841).

212068638783 is an equidigital number, since it uses as much as digits as its factorization.

212068638783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618131355 (or 2618131346 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 212068638783 in words is "two hundred twelve billion, sixty-eight million, six hundred thirty-eight thousand, seven hundred eighty-three".