28106740736 has 88 divisors (see below), whose sum is σ = 61052348160. Its totient is φ = 12883968000.

The previous prime is 28106740723. The next prime is 28106740771. The reversal of 28106740736 is 63704760182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579836 + ... + 626436.

Almost surely, 2^28106740736 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 28106740736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30526174080).

28106740736 is an abundant number, since it is smaller than the sum of its proper divisors (32945607424).

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

28106740736 is a wasteful number, since it uses less digits than its factorization.

28106740736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46671 (or 46653 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 28106740736 in words is "twenty-eight billion, one hundred six million, seven hundred forty thousand, seven hundred thirty-six".