27655637742434 has 16 divisors (see below), whose sum is σ = 44690441334840. Its totient is φ = 12759583468800.

The previous prime is 27655637742379. The next prime is 27655637742449. The reversal of 27655637742434 is 43424773655672.

It can be written as a sum of positive squares in 4 ways, for example, as 24452085459025 + 3203552283409 = 4944905^2 + 1789847^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189801929 + ... + 189947580.

Almost surely, 2^{27655637742434} is an apocalyptic number.

27655637742434 is a deficient number, since it is larger than the sum of its proper divisors (17034803592406).

27655637742434 is a wasteful number, since it uses less digits than its factorization.

27655637742434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379752325.

The product of its digits is 711244800, while the sum is 65.

The spelling of 27655637742434 in words is "twenty-seven trillion, six hundred fifty-five billion, six hundred thirty-seven million, seven hundred forty-two thousand, four hundred thirty-four".