27657121063 has 8 divisors (see below), whose sum is σ = 32492282256. Its totient is φ = 23208772800.

The previous prime is 27657121057. The next prime is 27657121073. The reversal of 27657121063 is 36012175672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27657121063 - 2²¹ = 27655023911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27657121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96703078 + ... + 96703363.

It is an arithmetic number, because the mean of its divisors is an integer number (4061535282).

Almost surely, 2^27657121063 is an apocalyptic number.

27657121063 is a deficient number, since it is larger than the sum of its proper divisors (4835161193).

27657121063 is a wasteful number, since it uses less digits than its factorization.

27657121063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193406465.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 27657121063 in words is "twenty-seven billion, six hundred fifty-seven million, one hundred twenty-one thousand, sixty-three".