2578404128 has 24 divisors (see below), whose sum is σ = 5077433088. Its totient is φ = 1288897344.

The previous prime is 2578404107. The next prime is 2578404131. The reversal of 2578404128 is 8214048752.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196625 + ... + 209327.

It is an arithmetic number, because the mean of its divisors is an integer number (211559712).

Almost surely, 2^2578404128 is an apocalyptic number.

It is an amenable number.

2578404128 is a deficient number, since it is larger than the sum of its proper divisors (2499028960).

2578404128 is a wasteful number, since it uses less digits than its factorization.

2578404128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19056 (or 19048 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 2578404128 is about 50777.9886171164. The cubic root of 2578404128 is about 1371.2511219978.

The spelling of 2578404128 in words is "two billion, five hundred seventy-eight million, four hundred four thousand, one hundred twenty-eight".