7481326385 has 16 divisors (see below), whose sum is σ = 9677480400. Its totient is φ = 5519354880.

The previous prime is 7481326381. The next prime is 7481326387. The reversal of 7481326385 is 5836231847.

7481326385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 213422881 + 7267903504 = 14609^2 + 85252^2 .

It is not a de Polignac number, because 7481326385 - 2² = 7481326381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7481326381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13325 + ... + 123045.

It is an arithmetic number, because the mean of its divisors is an integer number (604842525).

Almost surely, 2^7481326385 is an apocalyptic number.

It is an amenable number.

7481326385 is a deficient number, since it is larger than the sum of its proper divisors (2196154015).

7481326385 is a wasteful number, since it uses less digits than its factorization.

7481326385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110788.

The product of its digits is 967680, while the sum is 47.

The square root of 7481326385 is about 86494.6610202040. The cubic root of 7481326385 is about 1955.8079208600.

The spelling of 7481326385 in words is "seven billion, four hundred eighty-one million, three hundred twenty-six thousand, three hundred eighty-five".