7425779742719 has 4 divisors (see below), whose sum is σ = 7996993569096. Its totient is φ = 6854565916344.

The previous prime is 7425779742677. The next prime is 7425779742737. The reversal of 7425779742719 is 9172479775247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7425779742719 - 2³⁶ = 7357060265983 is a prime.

It is a super-2 number, since 2×7425779742719² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7425779742739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285606913169 + ... + 285606913194.

It is an arithmetic number, because the mean of its divisors is an integer number (1999248392274).

Almost surely, 2^{7425779742719} is an apocalyptic number.

7425779742719 is a deficient number, since it is larger than the sum of its proper divisors (571213826377).

7425779742719 is a wasteful number, since it uses less digits than its factorization.

7425779742719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571213826376.

The product of its digits is 435637440, while the sum is 71.

The spelling of 7425779742719 in words is "seven trillion, four hundred twenty-five billion, seven hundred seventy-nine million, seven hundred forty-two thousand, seven hundred nineteen".