2726561447 has 2 divisors, whose sum is σ = 2726561448. Its totient is φ = 2726561446.

The previous prime is 2726561443. The next prime is 2726561471. The reversal of 2726561447 is 7441656272.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2726561447 - 2² = 2726561443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2726561398 and 2726561407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2726561441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1363280723 + 1363280724.

It is an arithmetic number, because the mean of its divisors is an integer number (1363280724).

Almost surely, 2^2726561447 is an apocalyptic number.

2726561447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2726561447 is an equidigital number, since it uses as much as digits as its factorization.

2726561447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 44.

The square root of 2726561447 is about 52216.4863524922. The cubic root of 2726561447 is about 1397.0279548354.

The spelling of 2726561447 in words is "two billion, seven hundred twenty-six million, five hundred sixty-one thousand, four hundred forty-seven".