28861679793 has 16 divisors (see below), whose sum is σ = 38923191360. Its totient is φ = 19020739584.

The previous prime is 28861679783. The next prime is 28861679849. The reversal of 28861679793 is 39797616882.

It is not a de Polignac number, because 28861679793 - 2⁶ = 28861679729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28861679783) 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, 1623330 + ... + 1641012.

It is an arithmetic number, because the mean of its divisors is an integer number (2432699460).

Almost surely, 2^28861679793 is an apocalyptic number.

It is an amenable number.

28861679793 is a deficient number, since it is larger than the sum of its proper divisors (10061511567).

28861679793 is a wasteful number, since it uses less digits than its factorization.

28861679793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23888.

The product of its digits is 54867456, while the sum is 66.

The spelling of 28861679793 in words is "twenty-eight billion, eight hundred sixty-one million, six hundred seventy-nine thousand, seven hundred ninety-three".