7279331749 has 2 divisors, whose sum is σ = 7279331750. Its totient is φ = 7279331748.

The previous prime is 7279331713. The next prime is 7279331783. The reversal of 7279331749 is 9471339727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7090818849 + 188512900 = 84207^2 + 13730^2 .

It is a cyclic number.

It is not a de Polignac number, because 7279331749 - 2⁹ = 7279331237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7279331696 and 7279331705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7279331149) 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, 3639665874 + 3639665875.

It is an arithmetic number, because the mean of its divisors is an integer number (3639665875).

Almost surely, 2^7279331749 is an apocalyptic number.

It is an amenable number.

7279331749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7279331749 is an equidigital number, since it uses as much as digits as its factorization.

7279331749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000376, while the sum is 52.

The square root of 7279331749 is about 85318.9999296757. Note that the first 4 decimals coincide. The cubic root of 7279331749 is about 1938.0449135864.

The spelling of 7279331749 in words is "seven billion, two hundred seventy-nine million, three hundred thirty-one thousand, seven hundred forty-nine".