719045021791 has 2 divisors, whose sum is σ = 719045021792. Its totient is φ = 719045021790.

The previous prime is 719045021719. The next prime is 719045021803. The reversal of 719045021791 is 197120540917.

Together with previous prime (719045021719) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 719045021791 - 2¹⁵ = 719044989023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (719045001791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359522510895 + 359522510896.

It is an arithmetic number, because the mean of its divisors is an integer number (359522510896).

Almost surely, 2^719045021791 is an apocalyptic number.

719045021791 is a deficient number, since it is larger than the sum of its proper divisors (1).

719045021791 is an equidigital number, since it uses as much as digits as its factorization.

719045021791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 46.

The spelling of 719045021791 in words is "seven hundred nineteen billion, forty-five million, twenty-one thousand, seven hundred ninety-one".