18283737282820 has 24 divisors (see below), whose sum is σ = 38491598555928. Its totient is φ = 7295256768000.

The previous prime is 18283737282799. The next prime is 18283737282829. The reversal of 18283737282820 is 2828273738281.

It can be written as a sum of positive squares in 4 ways, for example, as 6120606728196 + 12163130554624 = 2473986^2 + 3487568^2 .

It is not an unprimeable number, because it can be changed into a prime (18283737282829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139875851 + ... + 1139891890.

It is an arithmetic number, because the mean of its divisors is an integer number (1603816606497).

Almost surely, 2^{18283737282820} is an apocalyptic number.

18283737282820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18283737282820 is an abundant number, since it is smaller than the sum of its proper divisors (20207861273108).

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

18283737282820 is a wasteful number, since it uses less digits than its factorization.

18283737282820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279768151 (or 2279768149 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 61.

The spelling of 18283737282820 in words is "eighteen trillion, two hundred eighty-three billion, seven hundred thirty-seven million, two hundred eighty-two thousand, eight hundred twenty".