2478863587 has 4 divisors (see below), whose sum is σ = 2479010536. Its totient is φ = 2478716640.

The previous prime is 2478863579. The next prime is 2478863591. The reversal of 2478863587 is 7853688742.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7853688742 = 2 ⋅3926844371.

It is a cyclic number.

It is not a de Polignac number, because 2478863587 - 2³ = 2478863579 is a prime.

It is a super-2 number, since 2×2478863587² = 12289529365909013138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2478863887) 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, 44313 + ... + 83194.

It is an arithmetic number, because the mean of its divisors is an integer number (619752634).

Almost surely, 2^2478863587 is an apocalyptic number.

2478863587 is a deficient number, since it is larger than the sum of its proper divisors (146949).

2478863587 is a wasteful number, since it uses less digits than its factorization.

2478863587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146948.

The product of its digits is 18063360, while the sum is 58.

The square root of 2478863587 is about 49788.1872234770. The cubic root of 2478863587 is about 1353.3731080561.

The spelling of 2478863587 in words is "two billion, four hundred seventy-eight million, eight hundred sixty-three thousand, five hundred eighty-seven".