2645679419 has 2 divisors, whose sum is σ = 2645679420. Its totient is φ = 2645679418.

The previous prime is 2645679409. The next prime is 2645679431. The reversal of 2645679419 is 9149765462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2645679419 - 2⁸ = 2645679163 is a prime.

It is a super-2 number, since 2×2645679419² = 13999239176240355122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2645679409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322839709 + 1322839710.

It is an arithmetic number, because the mean of its divisors is an integer number (1322839710).

Almost surely, 2^2645679419 is an apocalyptic number.

2645679419 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645679419 is an equidigital number, since it uses as much as digits as its factorization.

2645679419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The square root of 2645679419 is about 51436.1683934564. The cubic root of 2645679419 is about 1383.0750267720.

The spelling of 2645679419 in words is "two billion, six hundred forty-five million, six hundred seventy-nine thousand, four hundred nineteen".