7158573481 has 2 divisors, whose sum is σ = 7158573482. Its totient is φ = 7158573480.

The previous prime is 7158573467. The next prime is 7158573493. The reversal of 7158573481 is 1843758517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4017531456 + 3141042025 = 63384^2 + 56045^2 .

It is an emirp because it is prime and its reverse (1843758517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7158573481 - 2²¹ = 7156476329 is a prime.

It is a super-2 number, since 2×7158573481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7158573451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3579286740 + 3579286741.

It is an arithmetic number, because the mean of its divisors is an integer number (3579286741).

Almost surely, 2^7158573481 is an apocalyptic number.

It is an amenable number.

7158573481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7158573481 is an equidigital number, since it uses as much as digits as its factorization.

7158573481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940800, while the sum is 49.

The square root of 7158573481 is about 84608.3534942029. The cubic root of 7158573481 is about 1927.2682302998.

The spelling of 7158573481 in words is "seven billion, one hundred fifty-eight million, five hundred seventy-three thousand, four hundred eighty-one".