27386194983841 has 4 divisors (see below), whose sum is σ = 27386207361684. Its totient is φ = 27386182606000.

The previous prime is 27386194983811. The next prime is 27386194983907. The reversal of 27386194983841 is 14838949168372.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11992507520400 + 15393687463441 = 3463020^2 + 3923479^2 .

It is a cyclic number.

It is not a de Polignac number, because 27386194983841 - 2⁷ = 27386194983713 is a prime.

It is a super-2 number, since 2×27386194983841² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27386194983811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861570 + ... + 7631371.

It is an arithmetic number, because the mean of its divisors is an integer number (6846551840421).

Almost surely, 2^{27386194983841} is an apocalyptic number.

It is an amenable number.

27386194983841 is a deficient number, since it is larger than the sum of its proper divisors (12377843).

27386194983841 is an equidigital number, since it uses as much as digits as its factorization.

27386194983841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12377842.

The product of its digits is 501645312, while the sum is 73.

The spelling of 27386194983841 in words is "twenty-seven trillion, three hundred eighty-six billion, one hundred ninety-four million, nine hundred eighty-three thousand, eight hundred forty-one".