28534695504 has 80 divisors (see below), whose sum is σ = 84334637952. Its totient is φ = 8144123904.

The previous prime is 28534695499. The next prime is 28534695523. The reversal of 28534695504 is 40559643582.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275652 + ... + 364764.

Almost surely, 2^28534695504 is an apocalyptic number.

28534695504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28534695504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42167318976).

28534695504 is an abundant number, since it is smaller than the sum of its proper divisors (55799942448).

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

28534695504 is a wasteful number, since it uses less digits than its factorization.

28534695504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90084 (or 90078 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 28534695504 in words is "twenty-eight billion, five hundred thirty-four million, six hundred ninety-five thousand, five hundred four".