27416638081 has 8 divisors (see below), whose sum is σ = 31338157824. Its totient is φ = 23496332640.

The previous prime is 27416638009. The next prime is 27416638087. The reversal of 27416638081 is 18083661472.

27416638081 = 25529² + 25530² + ... + 25570².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27416638081 - 2¹¹ = 27416636033 is a prime.

It is a super-2 number, since 2×27416638081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27416638087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254665 + ... + 345958.

It is an arithmetic number, because the mean of its divisors is an integer number (3917269728).

Almost surely, 2^27416638081 is an apocalyptic number.

It is an amenable number.

27416638081 is a deficient number, since it is larger than the sum of its proper divisors (3921519743).

27416638081 is an equidigital number, since it uses as much as digits as its factorization.

27416638081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607151.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 27416638081 in words is "twenty-seven billion, four hundred sixteen million, six hundred thirty-eight thousand, eighty-one".