283081387680 has 384 divisors, whose sum is σ = 1219429209600. Its totient is φ = 59726979072.

The previous prime is 283081387663. The next prime is 283081387709. The reversal of 283081387680 is 86783180382.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 63 ways as a sum of consecutive naturals, for example, 33076 + ... + 753164.

It is an arithmetic number, because the mean of its divisors is an integer number (3175596900).

Almost surely, 2^283081387680 is an apocalyptic number.

283081387680 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 283081387680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609714604800).

283081387680 is an abundant number, since it is smaller than the sum of its proper divisors (936347821920).

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

283081387680 is a wasteful number, since it uses less digits than its factorization.

283081387680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720133 (or 720119 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

It can be divided in two parts, 283081 and 387680, that added together give a square (670761 = 819²).

The spelling of 283081387680 in words is "two hundred eighty-three billion, eighty-one million, three hundred eighty-seven thousand, six hundred eighty".