28803977416 has 16 divisors (see below), whose sum is σ = 55026467100. Its totient is φ = 14130252864.

The previous prime is 28803977399. The next prime is 28803977441. The reversal of 28803977416 is 61477930882.

It can be written as a sum of positive squares in 2 ways, for example, as 27294344100 + 1509633316 = 165210^2 + 38854^2 .

It is a super-2 number, since 2×28803977416² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33966531 + ... + 33967378.

Almost surely, 2^28803977416 is an apocalyptic number.

It is an amenable number.

28803977416 is a deficient number, since it is larger than the sum of its proper divisors (26222489684).

28803977416 is a wasteful number, since it uses less digits than its factorization.

28803977416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67933968 (or 67933964 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 28803977416 in words is "twenty-eight billion, eight hundred three million, nine hundred seventy-seven thousand, four hundred sixteen".