2405964487679 has 4 divisors (see below), whose sum is σ = 2405973939600. Its totient is φ = 2405955035760.

The previous prime is 2405964487673. The next prime is 2405964487711. The reversal of 2405964487679 is 9767844695042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2405964487679 - 2²⁸ = 2405696052223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405964487673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4333262 + ... + 4856859.

It is an arithmetic number, because the mean of its divisors is an integer number (601493484900).

Almost surely, 2^{2405964487679} is an apocalyptic number.

2405964487679 is a deficient number, since it is larger than the sum of its proper divisors (9451921).

2405964487679 is an equidigital number, since it uses as much as digits as its factorization.

2405964487679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9451920.

The product of its (nonzero) digits is 731566080, while the sum is 71.

The spelling of 2405964487679 in words is "two trillion, four hundred five billion, nine hundred sixty-four million, four hundred eighty-seven thousand, six hundred seventy-nine".