76865648747 has 2 divisors, whose sum is σ = 76865648748. Its totient is φ = 76865648746.

The previous prime is 76865648729. The next prime is 76865648753. The reversal of 76865648747 is 74784656867.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (74784656867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76865648747 - 2¹⁸ = 76865386603 is a prime.

It is not a weakly prime, because it can be changed into another prime (76865648707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38432824373 + 38432824374.

It is an arithmetic number, because the mean of its divisors is an integer number (38432824374).

Almost surely, 2^76865648747 is an apocalyptic number.

76865648747 is a deficient number, since it is larger than the sum of its proper divisors (1).

76865648747 is an equidigital number, since it uses as much as digits as its factorization.

76865648747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 379330560, while the sum is 68.

The spelling of 76865648747 in words is "seventy-six billion, eight hundred sixty-five million, six hundred forty-eight thousand, seven hundred forty-seven".