7775113849 has 2 divisors, whose sum is σ = 7775113850. Its totient is φ = 7775113848.

The previous prime is 7775113793. The next prime is 7775113883. The reversal of 7775113849 is 9483115777.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7644354624 + 130759225 = 87432^2 + 11435^2 .

It is an emirp because it is prime and its reverse (9483115777) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7775113849 - 2¹¹ = 7775111801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7775113796 and 7775113805.

It is not a weakly prime, because it can be changed into another prime (7775113889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3887556924 + 3887556925.

It is an arithmetic number, because the mean of its divisors is an integer number (3887556925).

Almost surely, 2^7775113849 is an apocalyptic number.

It is an amenable number.

7775113849 is a deficient number, since it is larger than the sum of its proper divisors (1).

7775113849 is an equidigital number, since it uses as much as digits as its factorization.

7775113849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481760, while the sum is 52.

The square root of 7775113849 is about 88176.6060188302. The cubic root of 7775113849 is about 1981.0810891184.

The spelling of 7775113849 in words is "seven billion, seven hundred seventy-five million, one hundred thirteen thousand, eight hundred forty-nine".