27541800069 has 16 divisors (see below), whose sum is σ = 42274800768. Its totient is φ = 15623292672.

The previous prime is 27541800049. The next prime is 27541800071. The reversal of 27541800069 is 96000814572.

It is not a de Polignac number, because 27541800069 - 2¹⁵ = 27541767301 is a prime.

It is a super-2 number, since 2×27541800069² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27541800069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27541800019) 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, 4783672 + ... + 4789425.

It is an arithmetic number, because the mean of its divisors is an integer number (2642175048).

Almost surely, 2^27541800069 is an apocalyptic number.

It is an amenable number.

27541800069 is a deficient number, since it is larger than the sum of its proper divisors (14733000699).

27541800069 is a wasteful number, since it uses less digits than its factorization.

27541800069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9573244.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 27541800069 in words is "twenty-seven billion, five hundred forty-one million, eight hundred thousand, sixty-nine".