27442145355 has 16 divisors (see below), whose sum is σ = 44360088864. Its totient is φ = 14484925440.

The previous prime is 27442145299. The next prime is 27442145369. The reversal of 27442145355 is 55354124472.

It is a happy number.

It is not a de Polignac number, because 27442145355 - 2¹⁴ = 27442128971 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9428836 + ... + 9431745.

It is an arithmetic number, because the mean of its divisors is an integer number (2772505554).

Almost surely, 2^27442145355 is an apocalyptic number.

27442145355 is a deficient number, since it is larger than the sum of its proper divisors (16917943509).

27442145355 is a wasteful number, since it uses less digits than its factorization.

27442145355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18860686.

The product of its digits is 672000, while the sum is 42.

The spelling of 27442145355 in words is "twenty-seven billion, four hundred forty-two million, one hundred forty-five thousand, three hundred fifty-five".