27143333845 has 16 divisors (see below), whose sum is σ = 32713233840. Its totient is φ = 21620588544.

The previous prime is 27143333813. The next prime is 27143333933. The reversal of 27143333845 is 54833334172.

It can be written as a sum of positive squares in 8 ways, for example, as 202379076 + 26940954769 = 14226^2 + 164137^2 .

It is a cyclic number.

It is not a de Polignac number, because 27143333845 - 2⁵ = 27143333813 is a prime.

It is a super-2 number, since 2×27143333845² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4871221 + ... + 4876789.

It is an arithmetic number, because the mean of its divisors is an integer number (2044577115).

Almost surely, 2^27143333845 is an apocalyptic number.

It is an amenable number.

27143333845 is a deficient number, since it is larger than the sum of its proper divisors (5569899995).

27143333845 is a wasteful number, since it uses less digits than its factorization.

27143333845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624.

The product of its digits is 725760, while the sum is 43.

The spelling of 27143333845 in words is "twenty-seven billion, one hundred forty-three million, three hundred thirty-three thousand, eight hundred forty-five".