4645642679 has 2 divisors, whose sum is σ = 4645642680. Its totient is φ = 4645642678.

The previous prime is 4645642619. The next prime is 4645642691. The reversal of 4645642679 is 9762465464.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4645642679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4645642679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4645642619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322821339 + 2322821340.

It is an arithmetic number, because the mean of its divisors is an integer number (2322821340).

Almost surely, 2^4645642679 is an apocalyptic number.

4645642679 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645642679 is an equidigital number, since it uses as much as digits as its factorization.

4645642679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 53.

The square root of 4645642679 is about 68158.9515691079. The cubic root of 4645642679 is about 1668.5860213891.

The spelling of 4645642679 in words is "four billion, six hundred forty-five million, six hundred forty-two thousand, six hundred seventy-nine".