28510662228061 has 16 divisors (see below), whose sum is σ = 30834544417600. Its totient is φ = 26205482983680.

The previous prime is 28510662228047. The next prime is 28510662228077. The reversal of 28510662228061 is 16082226601582.

It is not a de Polignac number, because 28510662228061 - 2¹⁹ = 28510661703773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28510662227996 and 28510662228014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28510662228161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28593490 + ... + 29573788.

It is an arithmetic number, because the mean of its divisors is an integer number (1927159026100).

Almost surely, 2^{28510662228061} is an apocalyptic number.

It is an amenable number.

28510662228061 is a deficient number, since it is larger than the sum of its proper divisors (2323882189539).

28510662228061 is a wasteful number, since it uses less digits than its factorization.

28510662228061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989836.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 28510662228061 in words is "twenty-eight trillion, five hundred ten billion, six hundred sixty-two million, two hundred twenty-eight thousand, sixty-one".