2578841172 has 48 divisors (see below), whose sum is σ = 6738565120. Its totient is φ = 852840576.

The previous prime is 2578841159. The next prime is 2578841173. The reversal of 2578841172 is 2711488752.

2578841172 is a `hidden beast` number, since 2 + 578 + 8 + 4 + 1 + 1 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578841173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80293 + ... + 107724.

Almost surely, 2^2578841172 is an apocalyptic number.

It is an amenable number.

2578841172 is an abundant number, since it is smaller than the sum of its proper divisors (4159723948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2578841172 is a wasteful number, since it uses less digits than its factorization.

2578841172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188157 (or 188149 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 2578841172 is about 50782.2919136189. The cubic root of 2578841172 is about 1371.3285941069.

The spelling of 2578841172 in words is "two billion, five hundred seventy-eight million, eight hundred forty-one thousand, one hundred seventy-two".