719716123667 has 2 divisors, whose sum is σ = 719716123668. Its totient is φ = 719716123666.

The previous prime is 719716123649. The next prime is 719716123727. The reversal of 719716123667 is 766321617917.

It is a weak prime.

It is an emirp because it is prime and its reverse (766321617917) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 719716123667 - 2²⁴ = 719699346451 is a prime.

It is not a weakly prime, because it can be changed into another prime (719716126667) 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, 359858061833 + 359858061834.

It is an arithmetic number, because the mean of its divisors is an integer number (359858061834).

Almost surely, 2^719716123667 is an apocalyptic number.

719716123667 is a deficient number, since it is larger than the sum of its proper divisors (1).

719716123667 is an equidigital number, since it uses as much as digits as its factorization.

719716123667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000752, while the sum is 56.

The spelling of 719716123667 in words is "seven hundred nineteen billion, seven hundred sixteen million, one hundred twenty-three thousand, six hundred sixty-seven".