766563851 has 2 divisors, whose sum is σ = 766563852. Its totient is φ = 766563850.

The previous prime is 766563823. The next prime is 766563859. The reversal of 766563851 is 158365667.

766563851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766563851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 766563796 and 766563805.

It is not a weakly prime, because it can be changed into another prime (766563859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383281925 + 383281926.

It is an arithmetic number, because the mean of its divisors is an integer number (383281926).

Almost surely, 2^766563851 is an apocalyptic number.

766563851 is a deficient number, since it is larger than the sum of its proper divisors (1).

766563851 is an equidigital number, since it uses as much as digits as its factorization.

766563851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The square root of 766563851 is about 27686.8895147144. The cubic root of 766563851 is about 915.2002113967.

The spelling of 766563851 in words is "seven hundred sixty-six million, five hundred sixty-three thousand, eight hundred fifty-one".