7291741081 has 2 divisors, whose sum is σ = 7291741082. Its totient is φ = 7291741080.

The previous prime is 7291741073. The next prime is 7291741097. The reversal of 7291741081 is 1801471927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7197825600 + 93915481 = 84840^2 + 9691^2 .

It is a cyclic number.

It is not a de Polignac number, because 7291741081 - 2³ = 7291741073 is a prime.

It is a super-2 number, since 2×7291741081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7291741181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3645870540 + 3645870541.

It is an arithmetic number, because the mean of its divisors is an integer number (3645870541).

Almost surely, 2^7291741081 is an apocalyptic number.

It is an amenable number.

7291741081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7291741081 is an equidigital number, since it uses as much as digits as its factorization.

7291741081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 7291741081 is about 85391.6921076049. The cubic root of 7291741081 is about 1939.1455727456.

The spelling of 7291741081 in words is "seven billion, two hundred ninety-one million, seven hundred forty-one thousand, eighty-one".