27747684153 has 24 divisors (see below), whose sum is σ = 46135252800. Its totient is φ = 15741743904.

The previous prime is 27747684143. The next prime is 27747684161. The reversal of 27747684153 is 35148674772.

It is not a de Polignac number, because 27747684153 - 2⁴ = 27747684137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27747684153.

It is not an unprimeable number, because it can be changed into a prime (27747684143) 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 23 ways as a sum of consecutive naturals, for example, 1575558 + ... + 1593071.

It is an arithmetic number, because the mean of its divisors is an integer number (1922302200).

Almost surely, 2^27747684153 is an apocalyptic number.

It is an amenable number.

27747684153 is a deficient number, since it is larger than the sum of its proper divisors (18387568647).

27747684153 is a wasteful number, since it uses less digits than its factorization.

27747684153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168781 (or 3168778 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 54.

The spelling of 27747684153 in words is "twenty-seven billion, seven hundred forty-seven million, six hundred eighty-four thousand, one hundred fifty-three".