4140695206721 has 2 divisors, whose sum is σ = 4140695206722. Its totient is φ = 4140695206720.

The previous prime is 4140695206699. The next prime is 4140695206741. The reversal of 4140695206721 is 1276025960414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3406479292225 + 734215914496 = 1845665^2 + 856864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4140695206721 is a prime.

It is not a weakly prime, because it can be changed into another prime (4140695206741) 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, 2070347603360 + 2070347603361.

It is an arithmetic number, because the mean of its divisors is an integer number (2070347603361).

Almost surely, 2^{4140695206721} is an apocalyptic number.

It is an amenable number.

4140695206721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4140695206721 is an equidigital number, since it uses as much as digits as its factorization.

4140695206721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 4140695206721 in words is "four trillion, one hundred forty billion, six hundred ninety-five million, two hundred six thousand, seven hundred twenty-one".