28758056061008 has 80 divisors (see below), whose sum is σ = 59263816872960. Its totient is φ = 13494602419200.

The previous prime is 28758056061001. The next prime is 28758056061083. The reversal of 28758056061008 is 80016065085782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28758056061001) 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, 2366441 + ... + 7944567.

It is an arithmetic number, because the mean of its divisors is an integer number (740797710912).

Almost surely, 2^{28758056061008} 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 28758056061008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29631908436480).

28758056061008 is an abundant number, since it is smaller than the sum of its proper divisors (30505760811952).

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

28758056061008 is a wasteful number, since it uses less digits than its factorization.

28758056061008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578476 (or 5578470 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 28758056061008 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty-one thousand, eight".