2578765484 has 24 divisors (see below), whose sum is σ = 4629734928. Its totient is φ = 1256379840.

The previous prime is 2578765457. The next prime is 2578765489. The reversal of 2578765484 is 4845678752.

It is not an unprimeable number, because it can be changed into a prime (2578765489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23279 + ... + 75494.

It is an arithmetic number, because the mean of its divisors is an integer number (192905622).

Almost surely, 2^2578765484 is an apocalyptic number.

It is an amenable number.

2578765484 is a deficient number, since it is larger than the sum of its proper divisors (2050969444).

2578765484 is a wasteful number, since it uses less digits than its factorization.

2578765484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98945 (or 98943 counting only the distinct ones).

The product of its digits is 15052800, while the sum is 56.

The square root of 2578765484 is about 50781.5466877487. The cubic root of 2578765484 is about 1371.3151779861.

The spelling of 2578765484 in words is "two billion, five hundred seventy-eight million, seven hundred sixty-five thousand, four hundred eighty-four".