28545937344 has 168 divisors, whose sum is σ = 83881155072. Its totient is φ = 9276664320.

The previous prime is 28545937339. The next prime is 28545937361. The reversal of 28545937344 is 44373954582.

28545937344 is a `hidden beast` number, since 2 + 8 + 5 + 4 + 593 + 7 + 3 + 44 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24544507 + ... + 24545669.

Almost surely, 2^28545937344 is an apocalyptic number.

28545937344 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 28545937344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41940577536).

28545937344 is an abundant number, since it is smaller than the sum of its proper divisors (55335217728).

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

28545937344 is a wasteful number, since it uses less digits than its factorization.

28545937344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215 (or 2202 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 28545937344 in words is "twenty-eight billion, five hundred forty-five million, nine hundred thirty-seven thousand, three hundred forty-four".