247464242343979 has 2 divisors, whose sum is σ = 247464242343980. Its totient is φ = 247464242343978.

The previous prime is 247464242343869. The next prime is 247464242344003. The reversal of 247464242343979 is 979343242464742.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 247464242343979 - 2⁴⁵ = 212279870255147 is a prime.

It is a super-2 number, since 2×247464242343979² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247464242343079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123732121171989 + 123732121171990.

It is an arithmetic number, because the mean of its divisors is an integer number (123732121171990).

Almost surely, 2^{247464242343979} is an apocalyptic number.

247464242343979 is a deficient number, since it is larger than the sum of its proper divisors (1).

247464242343979 is an equidigital number, since it uses as much as digits as its factorization.

247464242343979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1755758592, while the sum is 70.

The spelling of 247464242343979 in words is "two hundred forty-seven trillion, four hundred sixty-four billion, two hundred forty-two million, three hundred forty-three thousand, nine hundred seventy-nine".