28375583112121 has 8 divisors (see below), whose sum is σ = 32429450814464. Its totient is φ = 24321768652800.

The previous prime is 28375583112119. The next prime is 28375583112127. The reversal of 28375583112121 is 12121138557382.

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

It is a cyclic number.

It is not a de Polignac number, because 28375583112121 - 2¹ = 28375583112119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28375583112127) 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, 12162120 + ... + 14306233.

It is an arithmetic number, because the mean of its divisors is an integer number (4053681351808).

Almost surely, 2^{28375583112121} is an apocalyptic number.

It is an amenable number.

28375583112121 is a deficient number, since it is larger than the sum of its proper divisors (4053867702343).

28375583112121 is a wasteful number, since it uses less digits than its factorization.

28375583112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26621511.

The product of its digits is 806400, while the sum is 49.

The spelling of 28375583112121 in words is "twenty-eight trillion, three hundred seventy-five billion, five hundred eighty-three million, one hundred twelve thousand, one hundred twenty-one".