28636093944 has 112 divisors (see below), whose sum is σ = 80612903400. Its totient is φ = 9532240704.

The previous prime is 28636093933. The next prime is 28636093999. The reversal of 28636093944 is 44939063682.

28636093944 is a `hidden beast` number, since 28 + 6 + 3 + 609 + 3 + 9 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 27 ways as a sum of consecutive naturals, for example, 4831767 + ... + 4837689.

Almost surely, 2^28636093944 is an apocalyptic number.

28636093944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28636093944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40306451700).

28636093944 is an abundant number, since it is smaller than the sum of its proper divisors (51976809456).

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

28636093944 is an equidigital number, since it uses as much as digits as its factorization.

28636093944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776 (or 6757 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 28636093944 in words is "twenty-eight billion, six hundred thirty-six million, ninety-three thousand, nine hundred forty-four".