785566983011 has 2 divisors, whose sum is σ = 785566983012. Its totient is φ = 785566983010.

The previous prime is 785566983007. The next prime is 785566983041. The reversal of 785566983011 is 110389665587.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 785566983011 - 2² = 785566983007 is a prime.

It is a super-2 number, since 2×785566983011² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (785566983041) 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 as a sum of consecutive naturals, namely, 392783491505 + 392783491506.

It is an arithmetic number, because the mean of its divisors is an integer number (392783491506).

Almost surely, 2^785566983011 is an apocalyptic number.

785566983011 is a deficient number, since it is larger than the sum of its proper divisors (1).

785566983011 is an equidigital number, since it uses as much as digits as its factorization.

785566983011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 785566983011 in words is "seven hundred eighty-five billion, five hundred sixty-six million, nine hundred eighty-three thousand, eleven".