28046963165 has 16 divisors (see below), whose sum is σ = 36331435056. Its totient is φ = 20662387200.

The previous prime is 28046963123. The next prime is 28046963173. The reversal of 28046963165 is 56136964082.

It can be written as a sum of positive squares in 8 ways, for example, as 8169628996 + 19877334169 = 90386^2 + 140987^2 .

It is not a de Polignac number, because 28046963165 - 2²² = 28042768861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485096 + ... + 539825.

It is an arithmetic number, because the mean of its divisors is an integer number (2270714691).

Almost surely, 2^28046963165 is an apocalyptic number.

It is an amenable number.

28046963165 is a deficient number, since it is larger than the sum of its proper divisors (8284471891).

28046963165 is a wasteful number, since it uses less digits than its factorization.

28046963165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025360.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 28046963165 in words is "twenty-eight billion, forty-six million, nine hundred sixty-three thousand, one hundred sixty-five".