2579209020 has 48 divisors (see below), whose sum is σ = 8024207520. Its totient is φ = 687788928.

The previous prime is 2579208971. The next prime is 2579209027. The reversal of 2579209020 is 209029752.

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 (2579209027) 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, 2387617 + ... + 2388696.

It is an arithmetic number, because the mean of its divisors is an integer number (167170990).

Almost surely, 2^2579209020 is an apocalyptic number.

2579209020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2579209020 is an abundant number, since it is smaller than the sum of its proper divisors (5444998500).

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

2579209020 is a wasteful number, since it uses less digits than its factorization.

2579209020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776331 (or 4776323 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 2579209020 is about 50785.9135981622. The cubic root of 2579209020 is about 1371.3937934819.

The spelling of 2579209020 in words is "two billion, five hundred seventy-nine million, two hundred nine thousand, twenty".