27853535961 has 8 divisors (see below), whose sum is σ = 41264497760. Its totient is φ = 18569023956.

The previous prime is 27853535917. The next prime is 27853536019. The reversal of 27853535961 is 16953535872.

27853535961 is a `hidden beast` number, since 2 + 78 + 535 + 35 + 9 + 6 + 1 = 666.

It is not a de Polignac number, because 27853535961 - 2⁹ = 27853535449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27853535898 and 27853535907.

It is not an unprimeable number, because it can be changed into a prime (27853535861) 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, 515806195 + ... + 515806248.

It is an arithmetic number, because the mean of its divisors is an integer number (5158062220).

Almost surely, 2^27853535961 is an apocalyptic number.

It is an amenable number.

27853535961 is a deficient number, since it is larger than the sum of its proper divisors (13410961799).

27853535961 is a wasteful number, since it uses less digits than its factorization.

27853535961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031612452 (or 1031612446 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The spelling of 27853535961 in words is "twenty-seven billion, eight hundred fifty-three million, five hundred thirty-five thousand, nine hundred sixty-one".