27440600129028 has 36 divisors (see below), whose sum is σ = 69442831357900. Its totient is φ = 9136436976576.

The previous prime is 27440600129023. The next prime is 27440600129051. The reversal of 27440600129028 is 82092100604472.

27440600129028 is a `hidden beast` number, since 2 + 7 + 4 + 4 + 0 + 600 + 12 + 9 + 0 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23829315614784 + 3611284514244 = 4881528^2 + 1900338^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×27440600129028² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27440600129023) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 434540203 + ... + 434603346.

Almost surely, 2^{27440600129028} is an apocalyptic number.

It is an amenable number.

27440600129028 is an abundant number, since it is smaller than the sum of its proper divisors (42002231228872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27440600129028 is a wasteful number, since it uses less digits than its factorization.

27440600129028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869144436 (or 869144431 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 27440600129028 in words is "twenty-seven trillion, four hundred forty billion, six hundred million, one hundred twenty-nine thousand, twenty-eight".