28103165984 has 24 divisors (see below), whose sum is σ = 55533805740. Its totient is φ = 13999342336.

The previous prime is 28103165983. The next prime is 28103166031. The reversal of 28103165984 is 48956130182.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18068736400 + 10034429584 = 134420^2 + 100172^2 .

It is not an unprimeable number, because it can be changed into a prime (28103165983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623779 + ... + 1640994.

Almost surely, 2^28103165984 is an apocalyptic number.

It is an amenable number.

28103165984 is a deficient number, since it is larger than the sum of its proper divisors (27430639756).

28103165984 is a wasteful number, since it uses less digits than its factorization.

28103165984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265052 (or 3265044 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 28103165984 in words is "twenty-eight billion, one hundred three million, one hundred sixty-five thousand, nine hundred eighty-four".