28927457105 has 32 divisors (see below), whose sum is σ = 36043757568. Its totient is φ = 22269945600.

The previous prime is 28927457101. The next prime is 28927457107. The reversal of 28927457105 is 50175472982.

It is not a de Polignac number, because 28927457105 - 2² = 28927457101 is a prime.

It is a super-4 number, since 4×28927457105⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28927457101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6393374 + ... + 6397896.

It is an arithmetic number, because the mean of its divisors is an integer number (1126367424).

Almost surely, 2^28927457105 is an apocalyptic number.

It is an amenable number.

28927457105 is a deficient number, since it is larger than the sum of its proper divisors (7116300463).

28927457105 is a wasteful number, since it uses less digits than its factorization.

28927457105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4937.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 28927457105 in words is "twenty-eight billion, nine hundred twenty-seven million, four hundred fifty-seven thousand, one hundred five".