206762762641 has 2 divisors, whose sum is σ = 206762762642. Its totient is φ = 206762762640.

The previous prime is 206762762639. The next prime is 206762762671. The reversal of 206762762641 is 146267267602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164737762641 + 42025000000 = 405879^2 + 205000^2 .

It is a cyclic number.

It is not a de Polignac number, because 206762762641 - 2¹ = 206762762639 is a prime.

Together with 206762762639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (206762762671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103381381320 + 103381381321.

It is an arithmetic number, because the mean of its divisors is an integer number (103381381321).

Almost surely, 2^206762762641 is an apocalyptic number.

It is an amenable number.

206762762641 is a deficient number, since it is larger than the sum of its proper divisors (1).

206762762641 is an equidigital number, since it uses as much as digits as its factorization.

206762762641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 206762762641 in words is "two hundred six billion, seven hundred sixty-two million, seven hundred sixty-two thousand, six hundred forty-one".