27144255731 has 16 divisors (see below), whose sum is σ = 27886291200. Its totient is φ = 26414072160.

The previous prime is 27144255727. The next prime is 27144255781. The reversal of 27144255731 is 13755244172.

It is a cyclic number.

It is not a de Polignac number, because 27144255731 - 2² = 27144255727 is a prime.

It is a super-2 number, since 2×27144255731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27144255781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2097920 + ... + 2110818.

It is an arithmetic number, because the mean of its divisors is an integer number (1742893200).

Almost surely, 2^27144255731 is an apocalyptic number.

27144255731 is a deficient number, since it is larger than the sum of its proper divisors (742035469).

27144255731 is a wasteful number, since it uses less digits than its factorization.

27144255731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13354.

The product of its digits is 235200, while the sum is 41.

The spelling of 27144255731 in words is "twenty-seven billion, one hundred forty-four million, two hundred fifty-five thousand, seven hundred thirty-one".