28040212895 has 8 divisors (see below), whose sum is σ = 33799145856. Its totient is φ = 22331576736.

The previous prime is 28040212891. The next prime is 28040212903. The reversal of 28040212895 is 59821204082.

It is a happy number.

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 28040212895 - 2² = 28040212891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28040212891) 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, 12572972 + ... + 12575201.

It is an arithmetic number, because the mean of its divisors is an integer number (4224893232).

Almost surely, 2^28040212895 is an apocalyptic number.

28040212895 is a deficient number, since it is larger than the sum of its proper divisors (5758932961).

28040212895 is a wasteful number, since it uses less digits than its factorization.

28040212895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25148401.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 28040212895 in words is "twenty-eight billion, forty million, two hundred twelve thousand, eight hundred ninety-five".