27544540064 has 24 divisors (see below), whose sum is σ = 54280874340. Its totient is φ = 13758921216.

The previous prime is 27544540063. The next prime is 27544540087. The reversal of 27544540064 is 46004544572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27536083600 + 8456464 = 165940^2 + 2908^2 .

It is a super-2 number, since 2×27544540064² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27544540063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383579 + ... + 449690.

Almost surely, 2^27544540064 is an apocalyptic number.

It is an amenable number.

27544540064 is a deficient number, since it is larger than the sum of its proper divisors (26736334276).

27544540064 is a wasteful number, since it uses less digits than its factorization.

27544540064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834312 (or 834304 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 41.

The spelling of 27544540064 in words is "twenty-seven billion, five hundred forty-four million, five hundred forty thousand, sixty-four".