2646604423 has 2 divisors, whose sum is σ = 2646604424. Its totient is φ = 2646604422.

The previous prime is 2646604393. The next prime is 2646604459. The reversal of 2646604423 is 3244066462.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2646604423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2646604823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323302211 + 1323302212.

It is an arithmetic number, because the mean of its divisors is an integer number (1323302212).

Almost surely, 2^2646604423 is an apocalyptic number.

2646604423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646604423 is an equidigital number, since it uses as much as digits as its factorization.

2646604423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 37.

The square root of 2646604423 is about 51445.1593738420. The cubic root of 2646604423 is about 1383.2361953113.

The spelling of 2646604423 in words is "two billion, six hundred forty-six million, six hundred four thousand, four hundred twenty-three".