28287166412 has 6 divisors (see below), whose sum is σ = 49502541228. Its totient is φ = 14143583204.

The previous prime is 28287166393. The next prime is 28287166429. The reversal of 28287166412 is 21466178282.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3535895798 + ... + 3535895805.

It is an arithmetic number, because the mean of its divisors is an integer number (8250423538).

Almost surely, 2^28287166412 is an apocalyptic number.

It is an amenable number.

28287166412 is a deficient number, since it is larger than the sum of its proper divisors (21215374816).

28287166412 is a wasteful number, since it uses less digits than its factorization.

28287166412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071791607 (or 7071791605 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The spelling of 28287166412 in words is "twenty-eight billion, two hundred eighty-seven million, one hundred sixty-six thousand, four hundred twelve".