247006486805779 has 2 divisors, whose sum is σ = 247006486805780. Its totient is φ = 247006486805778.

The previous prime is 247006486805753. The next prime is 247006486805873. The reversal of 247006486805779 is 977508684600742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 247006486805779 - 2³¹ = 247004339322131 is a prime.

It is a super-2 number, since 2×247006486805779² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247006486805719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123503243402889 + 123503243402890.

It is an arithmetic number, because the mean of its divisors is an integer number (123503243402890).

Almost surely, 2^{247006486805779} is an apocalyptic number.

247006486805779 is a deficient number, since it is larger than the sum of its proper divisors (1).

247006486805779 is an equidigital number, since it uses as much as digits as its factorization.

247006486805779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1137991680, while the sum is 73.

The spelling of 247006486805779 in words is "two hundred forty-seven trillion, six billion, four hundred eighty-six million, eight hundred five thousand, seven hundred seventy-nine".