7491041771 has 2 divisors, whose sum is σ = 7491041772. Its totient is φ = 7491041770.

The previous prime is 7491041713. The next prime is 7491041773. The reversal of 7491041771 is 1771401947.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7491041771 - 2¹⁰ = 7491040747 is a prime.

It is a super-2 number, since 2×7491041771² (a number of 21 digits) contains 22 as substring.

Together with 7491041773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7491041773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3745520885 + 3745520886.

It is an arithmetic number, because the mean of its divisors is an integer number (3745520886).

Almost surely, 2^7491041771 is an apocalyptic number.

7491041771 is a deficient number, since it is larger than the sum of its proper divisors (1).

7491041771 is an equidigital number, since it uses as much as digits as its factorization.

7491041771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 7491041771 is about 86550.8045658733. The cubic root of 7491041771 is about 1956.6541705153.

The spelling of 7491041771 in words is "seven billion, four hundred ninety-one million, forty-one thousand, seven hundred seventy-one".