27657020144 has 40 divisors (see below), whose sum is σ = 57801842112. Its totient is φ = 12743896320.

The previous prime is 27657020123. The next prime is 27657020161. The reversal of 27657020144 is 44102075672.

It is a junction number, because it is equal to n+sod(n) for n = 27657020098 and 27657020107.

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 7 ways as a sum of consecutive naturals, for example, 19049 + ... + 235959.

Almost surely, 2^27657020144 is an apocalyptic number.

It is an amenable number.

27657020144 is an abundant number, since it is smaller than the sum of its proper divisors (30144821968).

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

27657020144 is a wasteful number, since it uses less digits than its factorization.

27657020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217545 (or 217539 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 27657020144 in words is "twenty-seven billion, six hundred fifty-seven million, twenty thousand, one hundred forty-four".