247220567875423 has 2 divisors, whose sum is σ = 247220567875424. Its totient is φ = 247220567875422.

The previous prime is 247220567875403. The next prime is 247220567875481. The reversal of 247220567875423 is 324578765022742.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247220567875423 is a prime.

It is a super-2 number, since 2×247220567875423² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247220567875403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123610283937711 + 123610283937712.

It is an arithmetic number, because the mean of its divisors is an integer number (123610283937712).

Almost surely, 2^{247220567875423} is an apocalyptic number.

247220567875423 is a deficient number, since it is larger than the sum of its proper divisors (1).

247220567875423 is an equidigital number, since it uses as much as digits as its factorization.

247220567875423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 316108800, while the sum is 64.

The spelling of 247220567875423 in words is "two hundred forty-seven trillion, two hundred twenty billion, five hundred sixty-seven million, eight hundred seventy-five thousand, four hundred twenty-three".