28533180404 has 6 divisors (see below), whose sum is σ = 49933065714. Its totient is φ = 14266590200.

The previous prime is 28533180391. The next prime is 28533180413. The reversal of 28533180404 is 40408133582.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16448575504 + 12084604900 = 128252^2 + 109930^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3566647547 + ... + 3566647554.

It is an arithmetic number, because the mean of its divisors is an integer number (8322177619).

Almost surely, 2^28533180404 is an apocalyptic number.

It is an amenable number.

28533180404 is a deficient number, since it is larger than the sum of its proper divisors (21399885310).

28533180404 is a wasteful number, since it uses less digits than its factorization.

28533180404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7133295105 (or 7133295103 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 28533180404 in words is "twenty-eight billion, five hundred thirty-three million, one hundred eighty thousand, four hundred four".