283279013820 has 576 divisors, whose sum is σ = 1016249794560. Its totient is φ = 63137318400.

The previous prime is 283279013813. The next prime is 283279013879. The reversal of 283279013820 is 28310972382.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 231625729 + ... + 231626951.

It is an arithmetic number, because the mean of its divisors is an integer number (1764322560).

Almost surely, 2^283279013820 is an apocalyptic number.

283279013820 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 283279013820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508124897280).

283279013820 is an abundant number, since it is smaller than the sum of its proper divisors (732970780740).

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

283279013820 is a wasteful number, since it uses less digits than its factorization.

283279013820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 283279013820 in words is "two hundred eighty-three billion, two hundred seventy-nine million, thirteen thousand, eight hundred twenty".