28805337423 has 32 divisors (see below), whose sum is σ = 44068147200. Its totient is φ = 18576928800.

The previous prime is 28805337419. The next prime is 28805337469. The reversal of 28805337423 is 32473350882.

28805337423 is a `hidden beast` number, since 28 + 8 + 0 + 533 + 74 + 23 = 666.

It is not a de Polignac number, because 28805337423 - 2² = 28805337419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28805337823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2958958 + ... + 2968676.

It is an arithmetic number, because the mean of its divisors is an integer number (1377129600).

Almost surely, 2^28805337423 is an apocalyptic number.

28805337423 is a deficient number, since it is larger than the sum of its proper divisors (15262809777).

28805337423 is a wasteful number, since it uses less digits than its factorization.

28805337423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13300 (or 13294 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 28805337423 in words is "twenty-eight billion, eight hundred five million, three hundred thirty-seven thousand, four hundred twenty-three".