7742405071 has 2 divisors, whose sum is σ = 7742405072. Its totient is φ = 7742405070.

The previous prime is 7742405063. The next prime is 7742405113. The reversal of 7742405071 is 1705042477.

It is a weak prime.

It is an emirp because it is prime and its reverse (1705042477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7742405071 - 2³ = 7742405063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7742405071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7742405371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3871202535 + 3871202536.

It is an arithmetic number, because the mean of its divisors is an integer number (3871202536).

Almost surely, 2^7742405071 is an apocalyptic number.

7742405071 is a deficient number, since it is larger than the sum of its proper divisors (1).

7742405071 is an equidigital number, since it uses as much as digits as its factorization.

7742405071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 7742405071 is about 87990.9374367611. The cubic root of 7742405071 is about 1978.2991439673.

The spelling of 7742405071 in words is "seven billion, seven hundred forty-two million, four hundred five thousand, seventy-one".