28914602808 has 128 divisors (see below), whose sum is σ = 89368473600. Its totient is φ = 7591504896.

The previous prime is 28914602807. The next prime is 28914602809. The reversal of 28914602808 is 80820641982.

It is an interprime number because it is at equal distance from previous prime (28914602807) and next prime (28914602809).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28914602803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457348 + ... + 516716.

It is an arithmetic number, because the mean of its divisors is an integer number (698191200).

Almost surely, 2^28914602808 is an apocalyptic number.

28914602808 is a gapful number since it is divisible by the number (28) 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 28914602808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44684236800).

28914602808 is an abundant number, since it is smaller than the sum of its proper divisors (60453870792).

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

28914602808 is a wasteful number, since it uses less digits than its factorization.

28914602808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59621 (or 59617 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 28914602808 in words is "twenty-eight billion, nine hundred fourteen million, six hundred two thousand, eight hundred eight".