719045021719 has 2 divisors, whose sum is σ = 719045021720. Its totient is φ = 719045021718.

The previous prime is 719045021693. The next prime is 719045021791. The reversal of 719045021719 is 917120540917.

Together with next prime (719045021791) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 719045021719 - 2²⁵ = 719011467287 is a prime.

It is a super-2 number, since 2×719045021719² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (719045321719) 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, 359522510859 + 359522510860.

It is an arithmetic number, because the mean of its divisors is an integer number (359522510860).

Almost surely, 2^719045021719 is an apocalyptic number.

719045021719 is a deficient number, since it is larger than the sum of its proper divisors (1).

719045021719 is an equidigital number, since it uses as much as digits as its factorization.

719045021719 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 719045021719 in words is "seven hundred nineteen billion, forty-five million, twenty-one thousand, seven hundred nineteen".