27253285685 has 8 divisors (see below), whose sum is σ = 33501600216. Its totient is φ = 21270856960.

The previous prime is 27253285681. The next prime is 27253285687. The reversal of 27253285685 is 58658235272.

It can be written as a sum of positive squares in 4 ways, for example, as 12773476 + 27240512209 = 3574^2 + 165047^2 .

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

It is not a de Polignac number, because 27253285685 - 2² = 27253285681 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 (27253285681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66471224 + ... + 66471633.

It is an arithmetic number, because the mean of its divisors is an integer number (4187700027).

Almost surely, 2^27253285685 is an apocalyptic number.

It is an amenable number.

27253285685 is a deficient number, since it is larger than the sum of its proper divisors (6248314531).

27253285685 is a wasteful number, since it uses less digits than its factorization.

27253285685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132942903.

The product of its digits is 8064000, while the sum is 53.

The spelling of 27253285685 in words is "twenty-seven billion, two hundred fifty-three million, two hundred eighty-five thousand, six hundred eighty-five".