28812656534 has 8 divisors (see below), whose sum is σ = 43227760800. Its totient is φ = 14403402936.

The previous prime is 28812656519. The next prime is 28812656597. The reversal of 28812656534 is 43565621882.

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

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, 1450334 + ... + 1470065.

It is an arithmetic number, because the mean of its divisors is an integer number (5403470100).

Almost surely, 2^28812656534 is an apocalyptic number.

28812656534 is a deficient number, since it is larger than the sum of its proper divisors (14415104266).

28812656534 is a wasteful number, since it uses less digits than its factorization.

28812656534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925334.

The product of its digits is 2764800, while the sum is 50.

The spelling of 28812656534 in words is "twenty-eight billion, eight hundred twelve million, six hundred fifty-six thousand, five hundred thirty-four".