27486181257668 has 12 divisors (see below), whose sum is σ = 54972362515392. Its totient is φ = 11779791967560.

The previous prime is 27486181257643. The next prime is 27486181257679. The reversal of 27486181257668 is 86675218168472.

27486181257668 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490824665288 + ... + 490824665343.

It is an arithmetic number, because the mean of its divisors is an integer number (4581030209616).

Almost surely, 2^{27486181257668} is an apocalyptic number.

27486181257668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27486181257668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27486181257668 is a wasteful number, since it uses less digits than its factorization.

27486181257668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981649330642 (or 981649330640 counting only the distinct ones).

The product of its digits is 433520640, while the sum is 71.

The spelling of 27486181257668 in words is "twenty-seven trillion, four hundred eighty-six billion, one hundred eighty-one million, two hundred fifty-seven thousand, six hundred sixty-eight".