28684936412272 has 40 divisors (see below), whose sum is σ = 63708538182272. Its totient is φ = 12256403544000.

The previous prime is 28684936412161. The next prime is 28684936412273. The reversal of 28684936412272 is 27221463948682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28684936412273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386844354 + ... + 386918497.

Almost surely, 2^{28684936412272} is an apocalyptic number.

It is an amenable number.

28684936412272 is an abundant number, since it is smaller than the sum of its proper divisors (35023601770000).

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

28684936412272 is a wasteful number, since it uses less digits than its factorization.

28684936412272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773763197 (or 773763191 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 64.

The spelling of 28684936412272 in words is "twenty-eight trillion, six hundred eighty-four billion, nine hundred thirty-six million, four hundred twelve thousand, two hundred seventy-two".