7040991913 has 2 divisors, whose sum is σ = 7040991914. Its totient is φ = 7040991912.

The previous prime is 7040991857. The next prime is 7040991989. The reversal of 7040991913 is 3191990407.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6988458409 + 52533504 = 83597^2 + 7248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7040991913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7040991913.

It is not a weakly prime, because it can be changed into another prime (7040994913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3520495956 + 3520495957.

It is an arithmetic number, because the mean of its divisors is an integer number (3520495957).

Almost surely, 2^7040991913 is an apocalyptic number.

It is an amenable number.

7040991913 is a deficient number, since it is larger than the sum of its proper divisors (1).

7040991913 is an equidigital number, since it uses as much as digits as its factorization.

7040991913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 7040991913 is about 83910.6185950265. The cubic root of 7040991913 is about 1916.6579513185.

The spelling of 7040991913 in words is "seven billion, forty million, nine hundred ninety-one thousand, nine hundred thirteen".