2646539443 has 2 divisors, whose sum is σ = 2646539444. Its totient is φ = 2646539442.

The previous prime is 2646539419. The next prime is 2646539479. The reversal of 2646539443 is 3449356462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2646539443 - 2¹⁷ = 2646408371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2646539393 and 2646539402.

It is not a weakly prime, because it can be changed into another prime (2646539143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323269721 + 1323269722.

It is an arithmetic number, because the mean of its divisors is an integer number (1323269722).

Almost surely, 2^2646539443 is an apocalyptic number.

2646539443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646539443 is an equidigital number, since it uses as much as digits as its factorization.

2646539443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 46.

The square root of 2646539443 is about 51444.5278236665. The cubic root of 2646539443 is about 1383.2248747147.

The spelling of 2646539443 in words is "two billion, six hundred forty-six million, five hundred thirty-nine thousand, four hundred forty-three".