27975100653 has 24 divisors (see below), whose sum is σ = 41912908128. Its totient is φ = 18646587504.

The previous prime is 27975100649. The next prime is 27975100687. The reversal of 27975100653 is 35600157972.

27975100653 is a `hidden beast` number, since 2 + 79 + 7 + 510 + 0 + 65 + 3 = 666.

It is not a de Polignac number, because 27975100653 - 2² = 27975100649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27975100599 and 27975100608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27975100633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2489275 + ... + 2500487.

It is an arithmetic number, because the mean of its divisors is an integer number (1746371172).

Almost surely, 2^27975100653 is an apocalyptic number.

It is an amenable number.

27975100653 is a deficient number, since it is larger than the sum of its proper divisors (13937807475).

27975100653 is a wasteful number, since it uses less digits than its factorization.

27975100653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21495 (or 21483 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 45.

The spelling of 27975100653 in words is "twenty-seven billion, nine hundred seventy-five million, one hundred thousand, six hundred fifty-three".