28108695504 has 40 divisors (see below), whose sum is σ = 72829644160. Its totient is φ = 9341756928.

The previous prime is 28108695493. The next prime is 28108695529. The reversal of 28108695504 is 40559680182.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852664 + ... + 885015.

It is an arithmetic number, because the mean of its divisors is an integer number (1820741104).

Almost surely, 2^28108695504 is an apocalyptic number.

28108695504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28108695504 is an abundant number, since it is smaller than the sum of its proper divisors (44720948656).

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

28108695504 is a wasteful number, since it uses less digits than its factorization.

28108695504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738027 (or 1738021 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 28108695504 in words is "twenty-eight billion, one hundred eight million, six hundred ninety-five thousand, five hundred four".