28154880000 has 840 divisors, whose sum is σ = 111778194528. Its totient is φ = 6782976000.

The previous prime is 28154879981. The next prime is 28154880007. The reversal of 28154880000 is 8845182.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28154880007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 599039977 + ... + 599040023.

Almost surely, 2^28154880000 is an apocalyptic number.

28154880000 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 28154880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55889097264).

28154880000 is an abundant number, since it is smaller than the sum of its proper divisors (83623314528).

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

28154880000 is an equidigital number, since it uses as much as digits as its factorization.

28154880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The spelling of 28154880000 in words is "twenty-eight billion, one hundred fifty-four million, eight hundred eighty thousand".