28732762512 has 120 divisors (see below), whose sum is σ = 83966500800. Its totient is φ = 9154785024.

The previous prime is 28732762511. The next prime is 28732762519. The reversal of 28732762512 is 21526723782.

28732762512 is a `hidden beast` number, since 2 + 8 + 7 + 3 + 2 + 7 + 625 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (28732762511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7744914 + ... + 7748622.

It is an arithmetic number, because the mean of its divisors is an integer number (699720840).

Almost surely, 2^28732762512 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 28732762512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41983250400).

28732762512 is an abundant number, since it is smaller than the sum of its proper divisors (55233738288).

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

28732762512 is a wasteful number, since it uses less digits than its factorization.

28732762512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6085 (or 6076 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The spelling of 28732762512 in words is "twenty-eight billion, seven hundred thirty-two million, seven hundred sixty-two thousand, five hundred twelve".