2579878882361 has 16 divisors (see below), whose sum is σ = 2908224324096. Its totient is φ = 2269687878000.

The previous prime is 2579878882351. The next prime is 2579878882363. The reversal of 2579878882361 is 1632888789752.

It is a de Polignac number, because none of the positive numbers 2^k-2579878882361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2579878882363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3608630 + ... + 4264031.

It is an arithmetic number, because the mean of its divisors is an integer number (181764020256).

Almost surely, 2^{2579878882361} is an apocalyptic number.

It is an amenable number.

2579878882361 is a deficient number, since it is larger than the sum of its proper divisors (328345441735).

2579878882361 is an frugal number, since it uses more digits than its factorization.

2579878882361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872765 (or 7872703 counting only the distinct ones).

The product of its digits is 650280960, while the sum is 74.

The spelling of 2579878882361 in words is "two trillion, five hundred seventy-nine billion, eight hundred seventy-eight million, eight hundred eighty-two thousand, three hundred sixty-one".