28895025405 has 32 divisors (see below), whose sum is σ = 47624860800. Its totient is φ = 14951220480.

The previous prime is 28895025391. The next prime is 28895025407. The reversal of 28895025405 is 50452059882.

It is not a de Polignac number, because 28895025405 - 2¹⁰ = 28895024381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28895025407) 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, 54226 + ... + 246435.

It is an arithmetic number, because the mean of its divisors is an integer number (1488276900).

Almost surely, 2^28895025405 is an apocalyptic number.

It is an amenable number.

28895025405 is a deficient number, since it is larger than the sum of its proper divisors (18729835395).

28895025405 is a wasteful number, since it uses less digits than its factorization.

28895025405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300861.

The product of its (nonzero) digits is 1152000, while the sum is 48.

The spelling of 28895025405 in words is "twenty-eight billion, eight hundred ninety-five million, twenty-five thousand, four hundred five".