283489778880 has 1792 divisors, whose sum is σ = 1321370910720. Its totient is φ = 55472947200.

The previous prime is 283489778879. The next prime is 283489778927. The reversal of 283489778880 is 88877984382.

It is a super-3 number, since 3×283489778880³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 283489778799 and 283489778808.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1484239585 + ... + 1484239775.

It is an arithmetic number, because the mean of its divisors is an integer number (737372160).

Almost surely, 2^283489778880 is an apocalyptic number.

283489778880 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 283489778880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660685455360).

283489778880 is an abundant number, since it is smaller than the sum of its proper divisors (1037881131840).

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

283489778880 is a wasteful number, since it uses less digits than its factorization.

283489778880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 346816512, while the sum is 72.

The spelling of 283489778880 in words is "two hundred eighty-three billion, four hundred eighty-nine million, seven hundred seventy-eight thousand, eight hundred eighty".