19760719313 has 2 divisors, whose sum is σ = 19760719314. Its totient is φ = 19760719312.

The previous prime is 19760719309. The next prime is 19760719337. The reversal of 19760719313 is 31391706791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17628403984 + 2132315329 = 132772^2 + 46177^2 .

It is a cyclic number.

It is not a de Polignac number, because 19760719313 - 2² = 19760719309 is a prime.

It is not a weakly prime, because it can be changed into another prime (19760719343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9880359656 + 9880359657.

It is an arithmetic number, because the mean of its divisors is an integer number (9880359657).

Almost surely, 2^19760719313 is an apocalyptic number.

It is an amenable number.

19760719313 is a deficient number, since it is larger than the sum of its proper divisors (1).

19760719313 is an equidigital number, since it uses as much as digits as its factorization.

19760719313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 47.

The spelling of 19760719313 in words is "nineteen billion, seven hundred sixty million, seven hundred nineteen thousand, three hundred thirteen".