2147281746613 has 4 divisors (see below), whose sum is σ = 2168541962028. Its totient is φ = 2126021531200.

The previous prime is 2147281746581. The next prime is 2147281746619. The reversal of 2147281746613 is 3166471827412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 943429517809 + 1203852228804 = 971303^2 + 1097202^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147281746613 - 2⁵ = 2147281746581 is a prime.

It is a super-2 number, since 2×2147281746613² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147281746619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10630107556 + ... + 10630107757.

It is an arithmetic number, because the mean of its divisors is an integer number (542135490507).

Almost surely, 2^{2147281746613} is an apocalyptic number.

It is an amenable number.

2147281746613 is a deficient number, since it is larger than the sum of its proper divisors (21260215415).

2147281746613 is a wasteful number, since it uses less digits than its factorization.

2147281746613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21260215414.

The product of its digits is 2709504, while the sum is 52.

The spelling of 2147281746613 in words is "two trillion, one hundred forty-seven billion, two hundred eighty-one million, seven hundred forty-six thousand, six hundred thirteen".