128247882767 has 2 divisors, whose sum is σ = 128247882768.
Its totient is φ = 128247882766.
The previous prime is 128247882671. The next prime is 128247882857. The reversal of 128247882767 is 767288742821.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 128247882767 - 210 = 128247881743 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (128247882467) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64123941383 + 64123941384.
It is an arithmetic number, because the mean of its divisors is an integer number (64123941384).
Almost surely, 2128247882767 is an apocalyptic number.
128247882767 is a deficient number, since it is larger than the sum of its proper divisors (1).
128247882767 is an equidigital number, since it uses as much as digits as its factorization.
128247882767 is an evil number, because the sum of its binary digits is even.
The product of its digits is 33718272, while the sum is 62.
The spelling of 128247882767 in words is "one hundred twenty-eight billion, two hundred forty-seven million, eight hundred eighty-two thousand, seven hundred sixty-seven".