247913452979 has 2 divisors, whose sum is σ = 247913452980. Its totient is φ = 247913452978.

The previous prime is 247913452967. The next prime is 247913453003. The reversal of 247913452979 is 979254319742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 247913452979 - 2²⁰ = 247912404403 is a prime.

It is a super-2 number, since 2×247913452979² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247913452909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123956726489 + 123956726490.

It is an arithmetic number, because the mean of its divisors is an integer number (123956726490).

Almost surely, 2^247913452979 is an apocalyptic number.

247913452979 is a deficient number, since it is larger than the sum of its proper divisors (1).

247913452979 is an equidigital number, since it uses as much as digits as its factorization.

247913452979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34292160, while the sum is 62.

The spelling of 247913452979 in words is "two hundred forty-seven billion, nine hundred thirteen million, four hundred fifty-two thousand, nine hundred seventy-nine".