28914234752 has 128 divisors (see below), whose sum is σ = 64120684320. Its totient is φ = 12902400000.

The previous prime is 28914234731. The next prime is 28914234757. The reversal of 28914234752 is 25743241982.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 28914234697 and 28914234706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28914234757) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7224752 + ... + 7228752.

Almost surely, 2^28914234752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28914234752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32060342160).

28914234752 is an abundant number, since it is smaller than the sum of its proper divisors (35206449568).

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

28914234752 is a wasteful number, since it uses less digits than its factorization.

28914234752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172 (or 4160 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The spelling of 28914234752 in words is "twenty-eight billion, nine hundred fourteen million, two hundred thirty-four thousand, seven hundred fifty-two".