28447553160 has 1152 divisors, whose sum is σ = 118274083200. Its totient is φ = 6091407360.

The previous prime is 28447553159. The next prime is 28447553171. The reversal of 28447553160 is 6135574482.

28447553160 is a `hidden beast` number, since 2 + 8 + 44 + 75 + 531 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 693842740 + ... + 693842780.

It is an arithmetic number, because the mean of its divisors is an integer number (102668475).

Almost surely, 2^28447553160 is an apocalyptic number.

28447553160 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 28447553160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59137041600).

28447553160 is an abundant number, since it is smaller than the sum of its proper divisors (89826530040).

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

28447553160 is a wasteful number, since it uses less digits than its factorization.

28447553160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 28447553160 in words is "twenty-eight billion, four hundred forty-seven million, five hundred fifty-three thousand, one hundred sixty".