27004399081 has 16 divisors (see below), whose sum is σ = 29698099200. Its totient is φ = 24350669200.

The previous prime is 27004399073. The next prime is 27004399109. The reversal of 27004399081 is 18099340072.

It is not a de Polignac number, because 27004399081 - 2³ = 27004399073 is a prime.

It is a super-2 number, since 2×27004399081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27004319081) 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 15 ways as a sum of consecutive naturals, for example, 5356560 + ... + 5361598.

It is an arithmetic number, because the mean of its divisors is an integer number (1856131200).

Almost surely, 2^27004399081 is an apocalyptic number.

It is an amenable number.

27004399081 is a deficient number, since it is larger than the sum of its proper divisors (2693700119).

27004399081 is a wasteful number, since it uses less digits than its factorization.

27004399081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8900.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 27004399081 in words is "twenty-seven billion, four million, three hundred ninety-nine thousand, eighty-one".