7137818813 has 2 divisors, whose sum is σ = 7137818814. Its totient is φ = 7137818812.

The previous prime is 7137818797. The next prime is 7137818861. The reversal of 7137818813 is 3188187317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5565458404 + 1572360409 = 74602^2 + 39653^2 .

It is a cyclic number.

It is not a de Polignac number, because 7137818813 - 2⁴ = 7137818797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7137518813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3568909406 + 3568909407.

It is an arithmetic number, because the mean of its divisors is an integer number (3568909407).

Almost surely, 2^7137818813 is an apocalyptic number.

It is an amenable number.

7137818813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7137818813 is an equidigital number, since it uses as much as digits as its factorization.

7137818813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 47.

The square root of 7137818813 is about 84485.6130533477. The cubic root of 7137818813 is about 1925.4038676318.

The spelling of 7137818813 in words is "seven billion, one hundred thirty-seven million, eight hundred eighteen thousand, eight hundred thirteen".