28107713504 has 192 divisors, whose sum is σ = 64657486656. Its totient is φ = 11912085504.

The previous prime is 28107713461. The next prime is 28107713507. The reversal of 28107713504 is 40531770182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28107713507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64913672 + ... + 64914104.

It is an arithmetic number, because the mean of its divisors is an integer number (336757743).

Almost surely, 2^28107713504 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 28107713504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32328743328).

28107713504 is an abundant number, since it is smaller than the sum of its proper divisors (36549773152).

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

28107713504 is a wasteful number, since it uses less digits than its factorization.

28107713504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 28107713504 in words is "twenty-eight billion, one hundred seven million, seven hundred thirteen thousand, five hundred four".