7904326481 has 2 divisors, whose sum is σ = 7904326482. Its totient is φ = 7904326480.

The previous prime is 7904326453. The next prime is 7904326489. The reversal of 7904326481 is 1846234097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7873900225 + 30426256 = 88735^2 + 5516^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7904326481 is a prime.

It is a super-2 number, since 2×7904326481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7904326489) 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 as a sum of consecutive naturals, namely, 3952163240 + 3952163241.

It is an arithmetic number, because the mean of its divisors is an integer number (3952163241).

Almost surely, 2^7904326481 is an apocalyptic number.

It is an amenable number.

7904326481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7904326481 is an equidigital number, since it uses as much as digits as its factorization.

7904326481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 7904326481 is about 88906.2791989407. The cubic root of 7904326481 is about 1991.9952111712.

The spelling of 7904326481 in words is "seven billion, nine hundred four million, three hundred twenty-six thousand, four hundred eighty-one".