27081026464 has 12 divisors (see below), whose sum is σ = 53315770914. Its totient is φ = 13540513216.

The previous prime is 27081026447. The next prime is 27081026507. The reversal of 27081026464 is 46462018072.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25061422864 + 2019603600 = 158308^2 + 44940^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423141007 + ... + 423141070.

Almost surely, 2^27081026464 is an apocalyptic number.

It is an amenable number.

27081026464 is a deficient number, since it is larger than the sum of its proper divisors (26234744450).

27081026464 is an equidigital number, since it uses as much as digits as its factorization.

27081026464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846282087 (or 846282079 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 27081026464 in words is "twenty-seven billion, eighty-one million, twenty-six thousand, four hundred sixty-four".