40702688813 has 2 divisors, whose sum is σ = 40702688814. Its totient is φ = 40702688812.

The previous prime is 40702688777. The next prime is 40702688861. The reversal of 40702688813 is 31888620704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34234990729 + 6467698084 = 185027^2 + 80422^2 .

It is a cyclic number.

It is not a de Polignac number, because 40702688813 - 2¹⁰ = 40702687789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40702688893) 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, 20351344406 + 20351344407.

It is an arithmetic number, because the mean of its divisors is an integer number (20351344407).

Almost surely, 2^40702688813 is an apocalyptic number.

It is an amenable number.

40702688813 is a deficient number, since it is larger than the sum of its proper divisors (1).

40702688813 is an equidigital number, since it uses as much as digits as its factorization.

40702688813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 40702688813 in words is "forty billion, seven hundred two million, six hundred eighty-eight thousand, eight hundred thirteen".