4006061217791 has 2 divisors, whose sum is σ = 4006061217792. Its totient is φ = 4006061217790.

The previous prime is 4006061217779. The next prime is 4006061217803. The reversal of 4006061217791 is 1977121606004.

It is a balanced prime because it is at equal distance from previous prime (4006061217779) and next prime (4006061217803).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4006061217791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4006061217701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2003030608895 + 2003030608896.

It is an arithmetic number, because the mean of its divisors is an integer number (2003030608896).

Almost surely, 2^{4006061217791} is an apocalyptic number.

4006061217791 is a deficient number, since it is larger than the sum of its proper divisors (1).

4006061217791 is an equidigital number, since it uses as much as digits as its factorization.

4006061217791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 4006061217791 in words is "four trillion, six billion, sixty-one million, two hundred seventeen thousand, seven hundred ninety-one".