28478382983 has 8 divisors (see below), whose sum is σ = 30161542320. Its totient is φ = 26796108160.

The previous prime is 28478382929. The next prime is 28478382991. The reversal of 28478382983 is 38928387482.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28478382983 is a prime.

It is a super-2 number, since 2×28478382983² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28478382923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154253 + ... + 284166.

It is an arithmetic number, because the mean of its divisors is an integer number (3770192790).

Almost surely, 2^28478382983 is an apocalyptic number.

28478382983 is a deficient number, since it is larger than the sum of its proper divisors (1683159337).

28478382983 is a wasteful number, since it uses less digits than its factorization.

28478382983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442257.

The product of its digits is 37158912, while the sum is 62.

The spelling of 28478382983 in words is "twenty-eight billion, four hundred seventy-eight million, three hundred eighty-two thousand, nine hundred eighty-three".