28738377312 has 192 divisors, whose sum is σ = 80980300800. Its totient is φ = 8906526720.

The previous prime is 28738377301. The next prime is 28738377313. The reversal of 28738377312 is 21377383782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28738377313) 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, 9015783 + ... + 9018969.

It is an arithmetic number, because the mean of its divisors is an integer number (421772400).

Almost surely, 2^28738377312 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 28738377312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40490150400).

28738377312 is an abundant number, since it is smaller than the sum of its proper divisors (52241923488).

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

28738377312 is a wasteful number, since it uses less digits than its factorization.

28738377312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 3341 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 51.

The spelling of 28738377312 in words is "twenty-eight billion, seven hundred thirty-eight million, three hundred seventy-seven thousand, three hundred twelve".