2578673005 has 16 divisors (see below), whose sum is σ = 3189916080. Its totient is φ = 1999683072.

The previous prime is 2578672997. The next prime is 2578673099. The reversal of 2578673005 is 5003768752.

It can be written as a sum of positive squares in 8 ways, for example, as 76772644 + 2501900361 = 8762^2 + 50019^2 .

It is a cyclic number.

It is not a de Polignac number, because 2578673005 - 2³ = 2578672997 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 23857 + ... + 75673.

It is an arithmetic number, because the mean of its divisors is an integer number (199369755).

Almost surely, 2^2578673005 is an apocalyptic number.

It is an amenable number.

2578673005 is a deficient number, since it is larger than the sum of its proper divisors (611243075).

2578673005 is a wasteful number, since it uses less digits than its factorization.

2578673005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52128.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 2578673005 is about 50780.6361224434. The cubic root of 2578673005 is about 1371.2987852104.

The spelling of 2578673005 in words is "two billion, five hundred seventy-eight million, six hundred seventy-three thousand, five".