2578045212 has 24 divisors (see below), whose sum is σ = 6683821200. Its totient is φ = 859348368.

The previous prime is 2578045207. The next prime is 2578045213. The reversal of 2578045212 is 2125408752.

It is a happy number.

2578045212 is a `hidden beast` number, since 2 + 57 + 80 + 4 + 521 + 2 = 666.

2578045212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2578045212² = 13292634230232249888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578045213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11935287 + ... + 11935502.

It is an arithmetic number, because the mean of its divisors is an integer number (278492550).

Almost surely, 2^2578045212 is an apocalyptic number.

It is an amenable number.

2578045212 is an abundant number, since it is smaller than the sum of its proper divisors (4105775988).

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

2578045212 is a wasteful number, since it uses less digits than its factorization.

2578045212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23870802 (or 23870794 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 2578045212 is about 50774.4543249851. The cubic root of 2578045212 is about 1371.1874926129.

The spelling of 2578045212 in words is "two billion, five hundred seventy-eight million, forty-five thousand, two hundred twelve".