281652008738013 has 12 divisors (see below), whose sum is σ = 406910153994240. Its totient is φ = 187731325191816.

The previous prime is 281652008737987. The next prime is 281652008738057. The reversal of 281652008738013 is 310837800256182.

281652008738013 is a `hidden beast` number, since 2 + 8 + 1 + 6 + 520 + 0 + 87 + 38 + 0 + 1 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-281652008738013 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281652008778013) 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, 3056670831 + ... + 3056762972.

It is an arithmetic number, because the mean of its divisors is an integer number (33909179499520).

Almost surely, 2^{281652008738013} is an apocalyptic number.

It is an amenable number.

281652008738013 is a deficient number, since it is larger than the sum of its proper divisors (125258145256227).

281652008738013 is a wasteful number, since it uses less digits than its factorization.

281652008738013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113438928 (or 6113438925 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 281652008738013 in words is "two hundred eighty-one trillion, six hundred fifty-two billion, eight million, seven hundred thirty-eight thousand, thirteen".