28621183447 has 8 divisors (see below), whose sum is σ = 28651916592. Its totient is φ = 28590470400.

The previous prime is 28621183441. The next prime is 28621183489. The reversal of 28621183447 is 74438112682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28621183447 - 2³ = 28621183439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28621183397 and 28621183406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28621183441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5504653 + ... + 5509849.

It is an arithmetic number, because the mean of its divisors is an integer number (3581489574).

Almost surely, 2^28621183447 is an apocalyptic number.

28621183447 is a deficient number, since it is larger than the sum of its proper divisors (30733145).

28621183447 is a wasteful number, since it uses less digits than its factorization.

28621183447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10049.

The product of its digits is 516096, while the sum is 46.

The spelling of 28621183447 in words is "twenty-eight billion, six hundred twenty-one million, one hundred eighty-three thousand, four hundred forty-seven".