205314768387 has 10 divisors (see below), whose sum is σ = 306704777588. Its totient is φ = 136876512204.

The previous prime is 205314768361. The next prime is 205314768419. The reversal of 205314768387 is 783867413502.

It is a happy number.

205314768387 is a `hidden beast` number, since 2 + 0 + 531 + 4 + 76 + 8 + 38 + 7 = 666.

It is not a de Polignac number, because 205314768387 - 2¹⁰ = 205314767363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205314758387) 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 9 ways as a sum of consecutive naturals, for example, 1267375033 + ... + 1267375194.

Almost surely, 2^205314768387 is an apocalyptic number.

205314768387 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

205314768387 is a deficient number, since it is larger than the sum of its proper divisors (101390009201).

205314768387 is an equidigital number, since it uses as much as digits as its factorization.

205314768387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534750239 (or 2534750230 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 205314768387 in words is "two hundred five billion, three hundred fourteen million, seven hundred sixty-eight thousand, three hundred eighty-seven".