2604663427 has 2 divisors, whose sum is σ = 2604663428. Its totient is φ = 2604663426.

The previous prime is 2604663419. The next prime is 2604663463. The reversal of 2604663427 is 7243664062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2604663427 - 2³ = 2604663419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2604663427.

It is not a weakly prime, because it can be changed into another prime (2604663407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302331713 + 1302331714.

It is an arithmetic number, because the mean of its divisors is an integer number (1302331714).

Almost surely, 2^2604663427 is an apocalyptic number.

2604663427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604663427 is an equidigital number, since it uses as much as digits as its factorization.

2604663427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 40.

The square root of 2604663427 is about 51035.9033132559. The cubic root of 2604663427 is about 1375.8904956898.

The spelling of 2604663427 in words is "two billion, six hundred four million, six hundred sixty-three thousand, four hundred twenty-seven".