74345171457719 has 2 divisors, whose sum is σ = 74345171457720. Its totient is φ = 74345171457718.

The previous prime is 74345171457707. The next prime is 74345171457751. The reversal of 74345171457719 is 91775417154347.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74345171457719 - 2³² = 74340876490423 is a prime.

It is a super-2 number, since 2×74345171457719² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74345171457769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37172585728859 + 37172585728860.

It is an arithmetic number, because the mean of its divisors is an integer number (37172585728860).

Almost surely, 2^{74345171457719} is an apocalyptic number.

74345171457719 is a deficient number, since it is larger than the sum of its proper divisors (1).

74345171457719 is an equidigital number, since it uses as much as digits as its factorization.

74345171457719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103723200, while the sum is 65.

The spelling of 74345171457719 in words is "seventy-four trillion, three hundred forty-five billion, one hundred seventy-one million, four hundred fifty-seven thousand, seven hundred nineteen".