2578373604 has 36 divisors (see below), whose sum is σ = 6524183484. Its totient is φ = 858583872.

The previous prime is 2578373597. The next prime is 2578373653. The reversal of 2578373604 is 4063738752.

2578373604 is a `hidden beast` number, since 2 + 5 + 7 + 8 + 37 + 3 + 604 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1875063204 + 703310400 = 43302^2 + 26520^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2578373604.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27 + ... + 71810.

It is an arithmetic number, because the mean of its divisors is an integer number (181227319).

Almost surely, 2^2578373604 is an apocalyptic number.

It is an amenable number.

2578373604 is an abundant number, since it is smaller than the sum of its proper divisors (3945809880).

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

2578373604 is a wasteful number, since it uses less digits than its factorization.

2578373604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72844 (or 72839 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 2578373604 is about 50777.6880529234. The cubic root of 2578373604 is about 1371.2457108685.

The spelling of 2578373604 in words is "two billion, five hundred seventy-eight million, three hundred seventy-three thousand, six hundred four".