76867562489 has 2 divisors, whose sum is σ = 76867562490. Its totient is φ = 76867562488.

The previous prime is 76867562377. The next prime is 76867562509. The reversal of 76867562489 is 98426576867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70326796864 + 6540765625 = 265192^2 + 80875^2 .

It is a cyclic number.

It is not a de Polignac number, because 76867562489 - 2¹² = 76867558393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76867502489) 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, 38433781244 + 38433781245.

It is an arithmetic number, because the mean of its divisors is an integer number (38433781245).

Almost surely, 2^76867562489 is an apocalyptic number.

It is an amenable number.

76867562489 is a deficient number, since it is larger than the sum of its proper divisors (1).

76867562489 is an equidigital number, since it uses as much as digits as its factorization.

76867562489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243855360, while the sum is 68.

The spelling of 76867562489 in words is "seventy-six billion, eight hundred sixty-seven million, five hundred sixty-two thousand, four hundred eighty-nine".