283312991920 has 160 divisors (see below), whose sum is σ = 759530815488. Its totient is φ = 96269451264.

The previous prime is 283312991917. The next prime is 283312991971. The reversal of 283312991920 is 29199213382.

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 31 ways as a sum of consecutive naturals, for example, 102909264 + ... + 102912016.

Almost surely, 2^283312991920 is an apocalyptic number.

283312991920 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 283312991920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379765407744).

283312991920 is an abundant number, since it is smaller than the sum of its proper divisors (476217823568).

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

283312991920 is a wasteful number, since it uses less digits than its factorization.

283312991920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347 (or 4341 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 283312991920 in words is "two hundred eighty-three billion, three hundred twelve million, nine hundred ninety-one thousand, nine hundred twenty".