283939448109768 has 144 divisors (see below), whose sum is σ = 845364839482800. Its totient is φ = 85385441793600.

The previous prime is 283939448109749. The next prime is 283939448109803. The reversal of 283939448109768 is 867901844939382.

283939448109768 is a `hidden beast` number, since 2 + 8 + 3 + 9 + 3 + 9 + 448 + 109 + 7 + 68 = 666.

It is a super-2 number, since 2×283939448109768² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3146043 + ... + 24036981.

It is an arithmetic number, because the mean of its divisors is an integer number (5870589163075).

Almost surely, 2^{283939448109768} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283939448109768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422682419741400).

283939448109768 is an abundant number, since it is smaller than the sum of its proper divisors (561425391373032).

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

283939448109768 is a wasteful number, since it uses less digits than its factorization.

283939448109768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20891224 (or 20891086 counting only the distinct ones).

The product of its (nonzero) digits is 4514807808, while the sum is 81.

The spelling of 283939448109768 in words is "two hundred eighty-three trillion, nine hundred thirty-nine billion, four hundred forty-eight million, one hundred nine thousand, seven hundred sixty-eight".