28763216436 has 48 divisors (see below), whose sum is σ = 72982679616. Its totient is φ = 8779866624.

The previous prime is 28763216411. The next prime is 28763216459. The reversal of 28763216436 is 63461236782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1897806 + ... + 1912901.

It is an arithmetic number, because the mean of its divisors is an integer number (1520472492).

Almost surely, 2^28763216436 is an apocalyptic number.

It is an amenable number.

28763216436 is an abundant number, since it is smaller than the sum of its proper divisors (44219463180).

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

28763216436 is a wasteful number, since it uses less digits than its factorization.

28763216436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810768 (or 3810766 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 48.

The spelling of 28763216436 in words is "twenty-eight billion, seven hundred sixty-three million, two hundred sixteen thousand, four hundred thirty-six".