28773734432352 has 288 divisors, whose sum is σ = 95069803901184. Its totient is φ = 7552708531200.

The previous prime is 28773734432321. The next prime is 28773734432369. The reversal of 28773734432352 is 25323443737782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11788077 + ... + 14018067.

It is an arithmetic number, because the mean of its divisors is an integer number (330103485768).

Almost surely, 2^{28773734432352} 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 28773734432352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47534901950592).

28773734432352 is an abundant number, since it is smaller than the sum of its proper divisors (66296069468832).

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

28773734432352 is a wasteful number, since it uses less digits than its factorization.

28773734432352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230242 (or 2230227 counting only the distinct ones).

The product of its digits is 142248960, while the sum is 60.

The spelling of 28773734432352 in words is "twenty-eight trillion, seven hundred seventy-three billion, seven hundred thirty-four million, four hundred thirty-two thousand, three hundred fifty-two".