10787785867 has 2 divisors, whose sum is σ = 10787785868. Its totient is φ = 10787785866.

The previous prime is 10787785859. The next prime is 10787785909. The reversal of 10787785867 is 76858778701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10787785867 - 2³ = 10787785859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10787785799 and 10787785808.

It is not a weakly prime, because it can be changed into another prime (10787785367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5393892933 + 5393892934.

It is an arithmetic number, because the mean of its divisors is an integer number (5393892934).

Almost surely, 2^10787785867 is an apocalyptic number.

10787785867 is a deficient number, since it is larger than the sum of its proper divisors (1).

10787785867 is an equidigital number, since it uses as much as digits as its factorization.

10787785867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36879360, while the sum is 64.

The spelling of 10787785867 in words is "ten billion, seven hundred eighty-seven million, seven hundred eighty-five thousand, eight hundred sixty-seven".