76731280013 has 2 divisors, whose sum is σ = 76731280014. Its totient is φ = 76731280012.

The previous prime is 76731279979. The next prime is 76731280049. The reversal of 76731280013 is 31008213767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72131456329 + 4599823684 = 268573^2 + 67822^2 .

It is an emirp because it is prime and its reverse (31008213767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76731280013 - 2¹⁴ = 76731263629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76731285013) 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, 38365640006 + 38365640007.

It is an arithmetic number, because the mean of its divisors is an integer number (38365640007).

Almost surely, 2^76731280013 is an apocalyptic number.

It is an amenable number.

76731280013 is a deficient number, since it is larger than the sum of its proper divisors (1).

76731280013 is an equidigital number, since it uses as much as digits as its factorization.

76731280013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 76731280013 in words is "seventy-six billion, seven hundred thirty-one million, two hundred eighty thousand, thirteen".