2579328681 has 16 divisors (see below), whose sum is σ = 3603038208. Its totient is φ = 1639242000.

The previous prime is 2579328677. The next prime is 2579328691. The reversal of 2579328681 is 1868239752.

It is not a de Polignac number, because 2579328681 - 2² = 2579328677 is a prime.

It is a super-2 number, since 2×2579328681² = 13305872889258399522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2579328601) 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, 200745 + ... + 213206.

It is an arithmetic number, because the mean of its divisors is an integer number (225189888).

Almost surely, 2^2579328681 is an apocalyptic number.

It is an amenable number.

2579328681 is a deficient number, since it is larger than the sum of its proper divisors (1023709527).

2579328681 is a wasteful number, since it uses less digits than its factorization.

2579328681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414052.

The product of its digits is 1451520, while the sum is 51.

The square root of 2579328681 is about 50787.0916769212. The cubic root of 2579328681 is about 1371.4150015104.

The spelling of 2579328681 in words is "two billion, five hundred seventy-nine million, three hundred twenty-eight thousand, six hundred eighty-one".