2427979065481 has 4 divisors (see below), whose sum is σ = 2427988810500. Its totient is φ = 2427969320464.

The previous prime is 2427979065461. The next prime is 2427979065497. The reversal of 2427979065481 is 1845609797242.

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 711593473600 + 1716385591881 = 843560^2 + 1310109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2427979065481 is a prime.

It is a super-2 number, since 2×2427979065481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2427979065401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4488706 + ... + 5000443.

It is an arithmetic number, because the mean of its divisors is an integer number (606997202625).

Almost surely, 2^{2427979065481} is an apocalyptic number.

It is an amenable number.

2427979065481 is a deficient number, since it is larger than the sum of its proper divisors (9745019).

2427979065481 is an equidigital number, since it uses as much as digits as its factorization.

2427979065481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9745018.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 2427979065481 in words is "two trillion, four hundred twenty-seven billion, nine hundred seventy-nine million, sixty-five thousand, four hundred eighty-one".