765980089577 has 2 divisors, whose sum is σ = 765980089578. Its totient is φ = 765980089576.

The previous prime is 765980089561. The next prime is 765980089591. The reversal of 765980089577 is 775980089567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765014371801 + 965717776 = 874651^2 + 31076^2 .

It is a cyclic number.

It is not a de Polignac number, because 765980089577 - 2⁴ = 765980089561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 765980089577.

It is not a weakly prime, because it can be changed into another prime (765980079577) 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, 382990044788 + 382990044789.

It is an arithmetic number, because the mean of its divisors is an integer number (382990044789).

Almost surely, 2^765980089577 is an apocalyptic number.

It is an amenable number.

765980089577 is a deficient number, since it is larger than the sum of its proper divisors (1).

765980089577 is an equidigital number, since it uses as much as digits as its factorization.

765980089577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 266716800, while the sum is 71.

The spelling of 765980089577 in words is "seven hundred sixty-five billion, nine hundred eighty million, eighty-nine thousand, five hundred seventy-seven".