28480530551 has 16 divisors (see below), whose sum is σ = 32741549568. Its totient is φ = 24520452000.

The previous prime is 28480530527. The next prime is 28480530557. The reversal of 28480530551 is 15503508482.

It is not a de Polignac number, because 28480530551 - 2¹⁰ = 28480529527 is a prime.

It is a super-2 number, since 2×28480530551² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28480530499 and 28480530508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28480530557) 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 15 ways as a sum of consecutive naturals, for example, 531731 + ... + 582836.

It is an arithmetic number, because the mean of its divisors is an integer number (2046346848).

Almost surely, 2^28480530551 is an apocalyptic number.

28480530551 is a deficient number, since it is larger than the sum of its proper divisors (4261019017).

28480530551 is a wasteful number, since it uses less digits than its factorization.

28480530551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114702.

The product of its (nonzero) digits is 192000, while the sum is 41.

The spelling of 28480530551 in words is "twenty-eight billion, four hundred eighty million, five hundred thirty thousand, five hundred fifty-one".