247814128741 has 2 divisors, whose sum is σ = 247814128742. Its totient is φ = 247814128740.

The previous prime is 247814128733. The next prime is 247814128759. The reversal of 247814128741 is 147821418742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245000250625 + 2813878116 = 494975^2 + 53046^2 .

It is a cyclic number.

It is not a de Polignac number, because 247814128741 - 2³ = 247814128733 is a prime.

It is a super-2 number, since 2×247814128741² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247814128841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123907064370 + 123907064371.

It is an arithmetic number, because the mean of its divisors is an integer number (123907064371).

Almost surely, 2^247814128741 is an apocalyptic number.

It is an amenable number.

247814128741 is a deficient number, since it is larger than the sum of its proper divisors (1).

247814128741 is an equidigital number, since it uses as much as digits as its factorization.

247814128741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 802816, while the sum is 49.

The spelling of 247814128741 in words is "two hundred forty-seven billion, eight hundred fourteen million, one hundred twenty-eight thousand, seven hundred forty-one".