2604381667 has 2 divisors, whose sum is σ = 2604381668. Its totient is φ = 2604381666.

The previous prime is 2604381629. The next prime is 2604381707. The reversal of 2604381667 is 7661834062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2604381667 - 2⁷ = 2604381539 is a prime.

It is not a weakly prime, because it can be changed into another prime (2604381067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302190833 + 1302190834.

It is an arithmetic number, because the mean of its divisors is an integer number (1302190834).

Almost surely, 2^2604381667 is an apocalyptic number.

2604381667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604381667 is an equidigital number, since it uses as much as digits as its factorization.

2604381667 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 43.

The square root of 2604381667 is about 51033.1428289499. The cubic root of 2604381667 is about 1375.8408814887.

The spelling of 2604381667 in words is "two billion, six hundred four million, three hundred eighty-one thousand, six hundred sixty-seven".