2579117583487 has 4 divisors (see below), whose sum is σ = 2579124543480. Its totient is φ = 2579110623496.

The previous prime is 2579117583481. The next prime is 2579117583521. The reversal of 2579117583487 is 7843857119752.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2579117583487 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2579117583481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2890912 + ... + 3676357.

It is an arithmetic number, because the mean of its divisors is an integer number (644781135870).

Almost surely, 2^{2579117583487} is an apocalyptic number.

2579117583487 is a deficient number, since it is larger than the sum of its proper divisors (6959993).

2579117583487 is an equidigital number, since it uses as much as digits as its factorization.

2579117583487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6959992.

The product of its digits is 118540800, while the sum is 67.

The spelling of 2579117583487 in words is "two trillion, five hundred seventy-nine billion, one hundred seventeen million, five hundred eighty-three thousand, four hundred eighty-seven".