28135549534 has 8 divisors (see below), whose sum is σ = 42239616120. Its totient is φ = 14055677496.

The previous prime is 28135549523. The next prime is 28135549613. The reversal of 28135549534 is 43594553182.

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, 6045729 + ... + 6050380.

It is an arithmetic number, because the mean of its divisors is an integer number (5279952015).

Almost surely, 2^28135549534 is an apocalyptic number.

28135549534 is a deficient number, since it is larger than the sum of its proper divisors (14104066586).

28135549534 is a wasteful number, since it uses less digits than its factorization.

28135549534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12097274.

The product of its digits is 2592000, while the sum is 49.

The spelling of 28135549534 in words is "twenty-eight billion, one hundred thirty-five million, five hundred forty-nine thousand, five hundred thirty-four".