27754877140 has 12 divisors (see below), whose sum is σ = 58285242036. Its totient is φ = 11101950848.

The previous prime is 27754877089. The next prime is 27754877159. The reversal of 27754877140 is 4177845772.

It can be written as a sum of positive squares in 2 ways, for example, as 7970204176 + 19784672964 = 89276^2 + 140658^2 .

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 693871909 + ... + 693871948.

It is an arithmetic number, because the mean of its divisors is an integer number (4857103503).

Almost surely, 2^27754877140 is an apocalyptic number.

27754877140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27754877140 is an abundant number, since it is smaller than the sum of its proper divisors (30530364896).

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

27754877140 is a wasteful number, since it uses less digits than its factorization.

27754877140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387743866 (or 1387743864 counting only the distinct ones).

The product of its (nonzero) digits is 3073280, while the sum is 52.

The spelling of 27754877140 in words is "twenty-seven billion, seven hundred fifty-four million, eight hundred seventy-seven thousand, one hundred forty".