28737123424 has 96 divisors (see below), whose sum is σ = 58511255040. Its totient is φ = 13887244800.

The previous prime is 28737123413. The next prime is 28737123433. The reversal of 28737123424 is 42432173782.

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 15 ways as a sum of consecutive naturals, for example, 51042567 + ... + 51043129.

It is an arithmetic number, because the mean of its divisors is an integer number (609492240).

Almost surely, 2^28737123424 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 28737123424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29255627520).

28737123424 is an abundant number, since it is smaller than the sum of its proper divisors (29774131616).

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

28737123424 is a wasteful number, since it uses less digits than its factorization.

28737123424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1036 counting only the distinct ones).

The product of its digits is 451584, while the sum is 43.

The spelling of 28737123424 in words is "twenty-eight billion, seven hundred thirty-seven million, one hundred twenty-three thousand, four hundred twenty-four".