28274544000 has 384 divisors, whose sum is σ = 105968191680. Its totient is φ = 7211212800.

The previous prime is 28274543989. The next prime is 28274544013. The reversal of 28274544000 is 44547282.

It is a tau number, because it is divible by the number of its divisors (384).

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

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, 3307732 + ... + 3316268.

Almost surely, 2^28274544000 is an apocalyptic number.

28274544000 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 28274544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52984095840).

28274544000 is an abundant number, since it is smaller than the sum of its proper divisors (77693647680).

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

28274544000 is a wasteful number, since it uses less digits than its factorization.

28274544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8595 (or 8570 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The spelling of 28274544000 in words is "twenty-eight billion, two hundred seventy-four million, five hundred forty-four thousand".