12338281836 has 36 divisors (see below), whose sum is σ = 31258877832. Its totient is φ = 4103471424.

The previous prime is 12338281831. The next prime is 12338281859. The reversal of 12338281836 is 63818283321.

12338281836 is a `hidden beast` number, since 1 + 2 + 338 + 281 + 8 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 12338281791 and 12338281800.

It is not an unprimeable number, because it can be changed into a prime (12338281831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370881 + ... + 402776.

It is an arithmetic number, because the mean of its divisors is an integer number (868302162).

Almost surely, 2^12338281836 is an apocalyptic number.

It is an amenable number.

12338281836 is an abundant number, since it is smaller than the sum of its proper divisors (18920595996).

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

12338281836 is a wasteful number, since it uses less digits than its factorization.

12338281836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774110 (or 774105 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 12338281836 in words is "twelve billion, three hundred thirty-eight million, two hundred eighty-one thousand, eight hundred thirty-six".