27548517940 has 12 divisors (see below), whose sum is σ = 57851887716. Its totient is φ = 11019407168.

The previous prime is 27548517929. The next prime is 27548517949. The reversal of 27548517940 is 4971584572.

It can be written as a sum of positive squares in 2 ways, for example, as 5109676324 + 22438841616 = 71482^2 + 149796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27548517949) 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 3 ways as a sum of consecutive naturals, for example, 688712929 + ... + 688712968.

It is an arithmetic number, because the mean of its divisors is an integer number (4820990643).

Almost surely, 2^27548517940 is an apocalyptic number.

27548517940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27548517940 is an abundant number, since it is smaller than the sum of its proper divisors (30303369776).

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

27548517940 is a wasteful number, since it uses less digits than its factorization.

27548517940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377425906 (or 1377425904 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 27548517940 in words is "twenty-seven billion, five hundred forty-eight million, five hundred seventeen thousand, nine hundred forty".