2726631643 has 2 divisors, whose sum is σ = 2726631644. Its totient is φ = 2726631642.

The previous prime is 2726631617. The next prime is 2726631697. The reversal of 2726631643 is 3461366272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2726631643 - 2²⁹ = 2189760731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2726631596 and 2726631605.

It is not a weakly prime, because it can be changed into another prime (2726635643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1363315821 + 1363315822.

It is an arithmetic number, because the mean of its divisors is an integer number (1363315822).

Almost surely, 2^2726631643 is an apocalyptic number.

2726631643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2726631643 is an equidigital number, since it uses as much as digits as its factorization.

2726631643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 40.

The square root of 2726631643 is about 52217.1585113552. The cubic root of 2726631643 is about 1397.0399436761.

The spelling of 2726631643 in words is "two billion, seven hundred twenty-six million, six hundred thirty-one thousand, six hundred forty-three".