27045126369 has 20 divisors (see below), whose sum is σ = 40415299056. Its totient is φ = 18023588856.

The previous prime is 27045126343. The next prime is 27045126391. The reversal of 27045126369 is 96362154072.

27045126369 is a `hidden beast` number, since 2 + 7 + 0 + 4 + 5 + 1 + 2 + 636 + 9 = 666.

It is not a de Polignac number, because 27045126369 - 2⁵ = 27045126337 is a prime.

It is a super-2 number, since 2×27045126369² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27045126569) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 171562 + ... + 289004.

Almost surely, 2^27045126369 is an apocalyptic number.

It is an amenable number.

27045126369 is a deficient number, since it is larger than the sum of its proper divisors (13370172687).

27045126369 is a wasteful number, since it uses less digits than its factorization.

27045126369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120298 (or 120289 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 27045126369 in words is "twenty-seven billion, forty-five million, one hundred twenty-six thousand, three hundred sixty-nine".