28045879336272 has 160 divisors (see below), whose sum is σ = 87678536285952. Its totient is φ = 7541258452992.

The previous prime is 28045879336243. The next prime is 28045879336337. The reversal of 28045879336272 is 27263397854082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92342808 + ... + 92646024.

Almost surely, 2^{28045879336272} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28045879336272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43839268142976).

28045879336272 is an abundant number, since it is smaller than the sum of its proper divisors (59632656949680).

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

28045879336272 is a wasteful number, since it uses less digits than its factorization.

28045879336272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319445 (or 319439 counting only the distinct ones).

The product of its (nonzero) digits is 243855360, while the sum is 66.

The spelling of 28045879336272 in words is "twenty-eight trillion, forty-five billion, eight hundred seventy-nine million, three hundred thirty-six thousand, two hundred seventy-two".