719121003691 has 2 divisors, whose sum is σ = 719121003692. Its totient is φ = 719121003690.

The previous prime is 719121003607. The next prime is 719121003761. The reversal of 719121003691 is 196300121917.

It is a strong prime.

It is an emirp because it is prime and its reverse (196300121917) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 719121003691 - 2¹³ = 719120995499 is a prime.

It is not a weakly prime, because it can be changed into another prime (719121000691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359560501845 + 359560501846.

It is an arithmetic number, because the mean of its divisors is an integer number (359560501846).

Almost surely, 2^719121003691 is an apocalyptic number.

719121003691 is a deficient number, since it is larger than the sum of its proper divisors (1).

719121003691 is an equidigital number, since it uses as much as digits as its factorization.

719121003691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 40.

The spelling of 719121003691 in words is "seven hundred nineteen billion, one hundred twenty-one million, three thousand, six hundred ninety-one".