28248187000 has 128 divisors (see below), whose sum is σ = 72346322880. Its totient is φ = 10238400000.

The previous prime is 28248186991. The next prime is 28248187007. The reversal of 28248187000 is 78184282.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28248187007) 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, 3482950 + ... + 3491050.

Almost surely, 2^28248187000 is an apocalyptic number.

28248187000 is a gapful number since it is divisible by the number (20) 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 28248187000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36173161440).

28248187000 is an abundant number, since it is smaller than the sum of its proper divisors (44098135880).

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

28248187000 is a wasteful number, since it uses less digits than its factorization.

28248187000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8450 (or 8436 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The spelling of 28248187000 in words is "twenty-eight billion, two hundred forty-eight million, one hundred eighty-seven thousand".