7040661811 has 2 divisors, whose sum is σ = 7040661812. Its totient is φ = 7040661810.

The previous prime is 7040661787. The next prime is 7040661851. The reversal of 7040661811 is 1181660407.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7040661811 - 2¹⁹ = 7040137523 is a prime.

It is not a weakly prime, because it can be changed into another prime (7040661851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3520330905 + 3520330906.

It is an arithmetic number, because the mean of its divisors is an integer number (3520330906).

Almost surely, 2^7040661811 is an apocalyptic number.

7040661811 is a deficient number, since it is larger than the sum of its proper divisors (1).

7040661811 is an equidigital number, since it uses as much as digits as its factorization.

7040661811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 7040661811 is about 83908.6515861148. The cubic root of 7040661811 is about 1916.6279980336.

The spelling of 7040661811 in words is "seven billion, forty million, six hundred sixty-one thousand, eight hundred eleven".