766434035089 has 2 divisors, whose sum is σ = 766434035090. Its totient is φ = 766434035088.

The previous prime is 766434035047. The next prime is 766434035117. The reversal of 766434035089 is 980530434667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721412409600 + 45021625489 = 849360^2 + 212183^2 .

It is a cyclic number.

It is not a de Polignac number, because 766434035089 - 2³⁵ = 732074296721 is a prime.

It is a super-2 number, since 2×766434035089² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (766434035489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383217017544 + 383217017545.

It is an arithmetic number, because the mean of its divisors is an integer number (383217017545).

Almost surely, 2^766434035089 is an apocalyptic number.

It is an amenable number.

766434035089 is a deficient number, since it is larger than the sum of its proper divisors (1).

766434035089 is an equidigital number, since it uses as much as digits as its factorization.

766434035089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 766434035089 in words is "seven hundred sixty-six billion, four hundred thirty-four million, thirty-five thousand, eighty-nine".