28169573416 has 8 divisors (see below), whose sum is σ = 52817950170. Its totient is φ = 14084786704.

The previous prime is 28169573407. The next prime is 28169573473. The reversal of 28169573416 is 61437596182.

It can be written as a sum of positive squares in only one way, i.e., 16902600100 + 11266973316 = 130010^2 + 106146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760598331 + ... + 1760598346.

Almost surely, 2^28169573416 is an apocalyptic number.

It is an amenable number.

28169573416 is a deficient number, since it is larger than the sum of its proper divisors (24648376754).

28169573416 is a wasteful number, since it uses less digits than its factorization.

28169573416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521196683 (or 3521196679 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The spelling of 28169573416 in words is "twenty-eight billion, one hundred sixty-nine million, five hundred seventy-three thousand, four hundred sixteen".