28482484981 has 8 divisors (see below), whose sum is σ = 30726943704. Its totient is φ = 26301250560.

The previous prime is 28482484973. The next prime is 28482484991. The reversal of 28482484981 is 18948428482.

It can be written as a sum of positive squares in 4 ways, for example, as 10519784356 + 17962700625 = 102566^2 + 134025^2 .

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 28482484981 - 2³ = 28482484973 is a prime.

It is a super-2 number, since 2×28482484981² (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 (28482484991) 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, 15805140 + ... + 15806941.

It is an arithmetic number, because the mean of its divisors is an integer number (3840867963).

Almost surely, 2^28482484981 is an apocalyptic number.

It is an amenable number.

28482484981 is a deficient number, since it is larger than the sum of its proper divisors (2244458723).

28482484981 is a wasteful number, since it uses less digits than its factorization.

28482484981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31612151.

The product of its digits is 9437184, while the sum is 58.

The spelling of 28482484981 in words is "twenty-eight billion, four hundred eighty-two million, four hundred eighty-four thousand, nine hundred eighty-one".