283217788980 has 384 divisors, whose sum is σ = 1122353971200. Its totient is φ = 57720563712.

The previous prime is 283217788967. The next prime is 283217789027. The reversal of 283217788980 is 89887712382.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1104957 + ... + 1336923.

It is an arithmetic number, because the mean of its divisors is an integer number (2922796800).

Almost surely, 2^283217788980 is an apocalyptic number.

283217788980 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 283217788980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561176985600).

283217788980 is an abundant number, since it is smaller than the sum of its proper divisors (839136182220).

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

283217788980 is a wasteful number, since it uses less digits than its factorization.

283217788980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232028 (or 232020 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 63.

The spelling of 283217788980 in words is "two hundred eighty-three billion, two hundred seventeen million, seven hundred eighty-eight thousand, nine hundred eighty".