283778304816 has 80 divisors (see below), whose sum is σ = 739930543200. Its totient is φ = 93711421440.

The previous prime is 283778304791. The next prime is 283778304833. The reversal of 283778304816 is 618403877382.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12686410 + ... + 12708758.

It is an arithmetic number, because the mean of its divisors is an integer number (9249131790).

Almost surely, 2^283778304816 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 283778304816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369965271600).

283778304816 is an abundant number, since it is smaller than the sum of its proper divisors (456152238384).

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

283778304816 is a wasteful number, since it uses less digits than its factorization.

283778304816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24814 (or 24808 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 283778304816 in words is "two hundred eighty-three billion, seven hundred seventy-eight million, three hundred four thousand, eight hundred sixteen".