27011375281397 has 4 divisors (see below), whose sum is σ = 29089173379980. Its totient is φ = 24933577182816.

The previous prime is 27011375281391. The next prime is 27011375281403. The reversal of 27011375281397 is 79318257311072.

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

It is an interprime number because it is at equal distance from previous prime (27011375281391) and next prime (27011375281403).

It can be written as a sum of positive squares in 2 ways, for example, as 8594694852241 + 18416680429156 = 2931671^2 + 4291466^2 .

It is a cyclic number.

It is not a de Polignac number, because 27011375281397 - 2¹⁸ = 27011375019253 is a prime.

It is a super-2 number, since 2×27011375281397² (a number of 28 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 (27011375281391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038899049272 + ... + 1038899049297.

It is an arithmetic number, because the mean of its divisors is an integer number (7272293344995).

Almost surely, 2^{27011375281397} is an apocalyptic number.

It is an amenable number.

27011375281397 is a deficient number, since it is larger than the sum of its proper divisors (2077798098583).

27011375281397 is a wasteful number, since it uses less digits than its factorization.

27011375281397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077798098582.

The product of its (nonzero) digits is 4445280, while the sum is 56.

The spelling of 27011375281397 in words is "twenty-seven trillion, eleven billion, three hundred seventy-five million, two hundred eighty-one thousand, three hundred ninety-seven".