768966128387 has 2 divisors, whose sum is σ = 768966128388. Its totient is φ = 768966128386.

The previous prime is 768966128383. The next prime is 768966128453. The reversal of 768966128387 is 783821669867.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 768966128387 - 2² = 768966128383 is a prime.

It is a super-3 number, since 3×768966128387³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 768966128387.

It is not a weakly prime, because it can be changed into another prime (768966128383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384483064193 + 384483064194.

It is an arithmetic number, because the mean of its divisors is an integer number (384483064194).

Almost surely, 2^768966128387 is an apocalyptic number.

768966128387 is a deficient number, since it is larger than the sum of its proper divisors (1).

768966128387 is an equidigital number, since it uses as much as digits as its factorization.

768966128387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 292626432, while the sum is 71.

The spelling of 768966128387 in words is "seven hundred sixty-eight billion, nine hundred sixty-six million, one hundred twenty-eight thousand, three hundred eighty-seven".