28695033438 has 8 divisors (see below), whose sum is σ = 57390066888. Its totient is φ = 9565011144.

The previous prime is 28695033421. The next prime is 28695033443. The reversal of 28695033438 is 83433059682.

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

28695033438 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391252781 + ... + 2391252792.

It is an arithmetic number, because the mean of its divisors is an integer number (7173758361).

Almost surely, 2^28695033438 is an apocalyptic number.

28695033438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28695033438 is a wasteful number, since it uses less digits than its factorization.

28695033438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782505578.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 28695033438 in words is "twenty-eight billion, six hundred ninety-five million, thirty-three thousand, four hundred thirty-eight".