28342081560 has 128 divisors (see below), whose sum is σ = 91622119680. Its totient is φ = 6972292608.

The previous prime is 28342081541. The next prime is 28342081577. The reversal of 28342081560 is 6518024382.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3157639 + ... + 3166601.

It is an arithmetic number, because the mean of its divisors is an integer number (715797810).

Almost surely, 2^28342081560 is an apocalyptic number.

28342081560 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 28342081560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45811059840).

28342081560 is an abundant number, since it is smaller than the sum of its proper divisors (63280038120).

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

28342081560 is a wasteful number, since it uses less digits than its factorization.

28342081560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11017 (or 11013 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 28342081560 in words is "twenty-eight billion, three hundred forty-two million, eighty-one thousand, five hundred sixty".