5243643674257 has 4 divisors (see below), whose sum is σ = 5310018910720. Its totient is φ = 5177268437796.

The previous prime is 5243643674221. The next prime is 5243643674303. The reversal of 5243643674257 is 7524763463425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5243643674257 is a prime.

It is a super-2 number, since 2×5243643674257² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5243643624257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33187618113 + ... + 33187618270.

It is an arithmetic number, because the mean of its divisors is an integer number (1327504727680).

Almost surely, 2^{5243643674257} is an apocalyptic number.

It is an amenable number.

5243643674257 is a deficient number, since it is larger than the sum of its proper divisors (66375236463).

5243643674257 is an equidigital number, since it uses as much as digits as its factorization.

5243643674257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66375236462.

The product of its digits is 101606400, while the sum is 58.

The spelling of 5243643674257 in words is "five trillion, two hundred forty-three billion, six hundred forty-three million, six hundred seventy-four thousand, two hundred fifty-seven".