7258168481 has 4 divisors (see below), whose sum is σ = 7259036592. Its totient is φ = 7257300372.

The previous prime is 7258168471. The next prime is 7258168487. The reversal of 7258168481 is 1848618527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7258168481 - 2⁶ = 7258168417 is a prime.

It is a super-2 number, since 2×7258168481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7258168487) 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 in 3 ways as a sum of consecutive naturals, for example, 421391 + ... + 438276.

It is an arithmetic number, because the mean of its divisors is an integer number (1814759148).

Almost surely, 2^7258168481 is an apocalyptic number.

It is an amenable number.

7258168481 is a deficient number, since it is larger than the sum of its proper divisors (868111).

7258168481 is an equidigital number, since it uses as much as digits as its factorization.

7258168481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868110.

The product of its digits is 860160, while the sum is 50.

The square root of 7258168481 is about 85194.8852983558. The cubic root of 7258168481 is about 1936.1649252506.

The spelling of 7258168481 in words is "seven billion, two hundred fifty-eight million, one hundred sixty-eight thousand, four hundred eighty-one".