28805604756 has 12 divisors (see below), whose sum is σ = 67213077792. Its totient is φ = 9601868248.

The previous prime is 28805604719. The next prime is 28805604761. The reversal of 28805604756 is 65740650882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 28805604699 and 28805604708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200233520 + ... + 1200233543.

It is an arithmetic number, because the mean of its divisors is an integer number (5601089816).

Almost surely, 2^28805604756 is an apocalyptic number.

It is an amenable number.

28805604756 is an abundant number, since it is smaller than the sum of its proper divisors (38407473036).

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

28805604756 is a wasteful number, since it uses less digits than its factorization.

28805604756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400467070 (or 2400467068 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 28805604756 in words is "twenty-eight billion, eight hundred five million, six hundred four thousand, seven hundred fifty-six".