28901700024 has 128 divisors (see below), whose sum is σ = 75343564800. Its totient is φ = 9228856320.

The previous prime is 28901700011. The next prime is 28901700029. The reversal of 28901700024 is 42000710982.

It is a happy number.

It is a Cunningham number, because it is equal to 170005²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28901700029) 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, 56781082 + ... + 56781590.

It is an arithmetic number, because the mean of its divisors is an integer number (588621600).

Almost surely, 2^28901700024 is an apocalyptic number.

28901700024 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 28901700024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37671782400).

28901700024 is an abundant number, since it is smaller than the sum of its proper divisors (46441864776).

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

28901700024 is a wasteful number, since it uses less digits than its factorization.

28901700024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 28901700024 in words is "twenty-eight billion, nine hundred one million, seven hundred thousand, twenty-four".