28112537048736 has 96 divisors (see below), whose sum is σ = 84981409970688. Its totient is φ = 7970839269120.

The previous prime is 28112537048731. The next prime is 28112537048749. The reversal of 28112537048736 is 63784073521182.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (28112537048731) 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, 159584230 + ... + 159760293.

It is an arithmetic number, because the mean of its divisors is an integer number (885223020528).

Almost surely, 2^{28112537048736} is an apocalyptic number.

It is an amenable number.

28112537048736 is an abundant number, since it is smaller than the sum of its proper divisors (56868872921952).

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

28112537048736 is a wasteful number, since it uses less digits than its factorization.

28112537048736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319344674 (or 319344666 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 28112537048736 in words is "twenty-eight trillion, one hundred twelve billion, five hundred thirty-seven million, forty-eight thousand, seven hundred thirty-six".