5127684643 has 2 divisors, whose sum is σ = 5127684644. Its totient is φ = 5127684642.

The previous prime is 5127684637. The next prime is 5127684647. The reversal of 5127684643 is 3464867215.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5127684643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5127684593 and 5127684602.

It is not a weakly prime, because it can be changed into another prime (5127684647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2563842321 + 2563842322.

It is an arithmetic number, because the mean of its divisors is an integer number (2563842322).

Almost surely, 2^5127684643 is an apocalyptic number.

5127684643 is a deficient number, since it is larger than the sum of its proper divisors (1).

5127684643 is an equidigital number, since it uses as much as digits as its factorization.

5127684643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The square root of 5127684643 is about 71607.8532215566. The cubic root of 5127684643 is about 1724.4096158445.

The spelling of 5127684643 in words is "five billion, one hundred twenty-seven million, six hundred eighty-four thousand, six hundred forty-three".