2726406649 has 2 divisors, whose sum is σ = 2726406650. Its totient is φ = 2726406648.

The previous prime is 2726406647. The next prime is 2726406673. The reversal of 2726406649 is 9466046272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1369000000 + 1357406649 = 37000^2 + 36843^2 .

It is a cyclic number.

It is not a de Polignac number, because 2726406649 - 2¹ = 2726406647 is a prime.

It is a super-2 number, since 2×2726406649² = 14866586431422818402, which contains 22 as substring.

Together with 2726406647, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2726406599 and 2726406608.

It is not a weakly prime, because it can be changed into another prime (2726406647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1363203324 + 1363203325.

It is an arithmetic number, because the mean of its divisors is an integer number (1363203325).

Almost surely, 2^2726406649 is an apocalyptic number.

It is an amenable number.

2726406649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2726406649 is an equidigital number, since it uses as much as digits as its factorization.

2726406649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 2726406649 is about 52215.0040601358. The cubic root of 2726406649 is about 1397.0015160124.

The spelling of 2726406649 in words is "two billion, seven hundred twenty-six million, four hundred six thousand, six hundred forty-nine".