4000750906709 has 2 divisors, whose sum is σ = 4000750906710. Its totient is φ = 4000750906708.

The previous prime is 4000750906697. The next prime is 4000750906771. The reversal of 4000750906709 is 9076090570004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4000540018225 + 210888484 = 2000135^2 + 14522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000750906709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000750906309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000375453354 + 2000375453355.

It is an arithmetic number, because the mean of its divisors is an integer number (2000375453355).

Almost surely, 2^{4000750906709} is an apocalyptic number.

It is an amenable number.

4000750906709 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000750906709 is an equidigital number, since it uses as much as digits as its factorization.

4000750906709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 4000750906709 in words is "four trillion, seven hundred fifty million, nine hundred six thousand, seven hundred nine".