40347662047123 has 2 divisors, whose sum is σ = 40347662047124. Its totient is φ = 40347662047122.

The previous prime is 40347662047009. The next prime is 40347662047129. The reversal of 40347662047123 is 32174026674304.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40347662047123 is a prime.

It is not a weakly prime, because it can be changed into another prime (40347662047129) 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, 20173831023561 + 20173831023562.

It is an arithmetic number, because the mean of its divisors is an integer number (20173831023562).

Almost surely, 2^{40347662047123} is an apocalyptic number.

40347662047123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40347662047123 is an equidigital number, since it uses as much as digits as its factorization.

40347662047123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 49.

The spelling of 40347662047123 in words is "forty trillion, three hundred forty-seven billion, six hundred sixty-two million, forty-seven thousand, one hundred twenty-three".