28523683333838 has 32 divisors (see below), whose sum is σ = 54784694711808. Its totient is φ = 10812768688800.

The previous prime is 28523683333837. The next prime is 28523683333861. The reversal of 28523683333838 is 83833338632582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28523683333837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2502950018 + ... + 2502961413.

It is an arithmetic number, because the mean of its divisors is an integer number (1712021709744).

Almost surely, 2^{28523683333838} is an apocalyptic number.

28523683333838 is a deficient number, since it is larger than the sum of its proper divisors (26261011377970).

28523683333838 is a wasteful number, since it uses less digits than its factorization.

28523683333838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005911488.

The product of its digits is 358318080, while the sum is 65.

The spelling of 28523683333838 in words is "twenty-eight trillion, five hundred twenty-three billion, six hundred eighty-three million, three hundred thirty-three thousand, eight hundred thirty-eight".