7173631613 has 2 divisors, whose sum is σ = 7173631614. Its totient is φ = 7173631612.

The previous prime is 7173631561. The next prime is 7173631631. The reversal of 7173631613 is 3161363717.

7173631613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (7173631631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6589055929 + 584575684 = 81173^2 + 24178^2 .

It is a cyclic number.

It is not a de Polignac number, because 7173631613 - 2²⁶ = 7106522749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7173631813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3586815806 + 3586815807.

It is an arithmetic number, because the mean of its divisors is an integer number (3586815807).

Almost surely, 2^7173631613 is an apocalyptic number.

It is an amenable number.

7173631613 is a deficient number, since it is larger than the sum of its proper divisors (1).

7173631613 is an equidigital number, since it uses as much as digits as its factorization.

7173631613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

The square root of 7173631613 is about 84697.2940122646. The cubic root of 7173631613 is about 1928.6186266479.

The spelling of 7173631613 in words is "seven billion, one hundred seventy-three million, six hundred thirty-one thousand, six hundred thirteen".