2578842489 has 16 divisors (see below), whose sum is σ = 3642020928. Its totient is φ = 1617518592.

The previous prime is 2578842481. The next prime is 2578842493. The reversal of 2578842489 is 9842488752.

2578842489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2578842489 - 2³ = 2578842481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2578842481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168994 + ... + 183620.

It is an arithmetic number, because the mean of its divisors is an integer number (227626308).

Almost surely, 2^2578842489 is an apocalyptic number.

It is an amenable number.

2578842489 is a deficient number, since it is larger than the sum of its proper divisors (1063178439).

2578842489 is a wasteful number, since it uses less digits than its factorization.

2578842489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18104.

The product of its digits is 10321920, while the sum is 57.

The square root of 2578842489 is about 50782.3048807358. The cubic root of 2578842489 is about 1371.3288275502.

The spelling of 2578842489 in words is "two billion, five hundred seventy-eight million, eight hundred forty-two thousand, four hundred eighty-nine".