28351051248 has 240 divisors, whose sum is σ = 83983958016. Its totient is φ = 8190927360.

The previous prime is 28351051247. The next prime is 28351051259. The reversal of 28351051248 is 84215015382.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28351051247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28608033 + ... + 28609023.

Almost surely, 2^28351051248 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 28351051248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41991979008).

28351051248 is an abundant number, since it is smaller than the sum of its proper divisors (55632906768).

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

28351051248 is a wasteful number, since it uses less digits than its factorization.

28351051248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 28351051248 in words is "twenty-eight billion, three hundred fifty-one million, fifty-one thousand, two hundred forty-eight".