2578810845 has 16 divisors (see below), whose sum is σ = 4443489792. Its totient is φ = 1269568320.

The previous prime is 2578810837. The next prime is 2578810901. The reversal of 2578810845 is 5480188752.

It is not a de Polignac number, because 2578810845 - 2³ = 2578810837 is a prime.

It is a super-2 number, since 2×2578810845² = 13300530748579228050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2578810794 and 2578810803.

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, 6612141 + ... + 6612530.

It is an arithmetic number, because the mean of its divisors is an integer number (277718112).

Almost surely, 2^2578810845 is an apocalyptic number.

It is an amenable number.

2578810845 is a deficient number, since it is larger than the sum of its proper divisors (1864678947).

2578810845 is a wasteful number, since it uses less digits than its factorization.

2578810845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13224692.

The product of its (nonzero) digits is 716800, while the sum is 48.

The square root of 2578810845 is about 50781.9933145598. The cubic root of 2578810845 is about 1371.3232185083.

The spelling of 2578810845 in words is "two billion, five hundred seventy-eight million, eight hundred ten thousand, eight hundred forty-five".