28038820535 has 8 divisors (see below), whose sum is σ = 36705365136. Its totient is φ = 20391869440.

The previous prime is 28038820531. The next prime is 28038820547. The reversal of 28038820535 is 53502883082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28038820535 - 2² = 28038820531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28038820531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254898314 + ... + 254898423.

It is an arithmetic number, because the mean of its divisors is an integer number (4588170642).

Almost surely, 2^28038820535 is an apocalyptic number.

28038820535 is a deficient number, since it is larger than the sum of its proper divisors (8666544601).

28038820535 is a wasteful number, since it uses less digits than its factorization.

28038820535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509796753.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 28038820535 in words is "twenty-eight billion, thirty-eight million, eight hundred twenty thousand, five hundred thirty-five".