27650501149 has 4 divisors (see below), whose sum is σ = 28063195264. Its totient is φ = 27237807036.

The previous prime is 27650501143. The next prime is 27650501159. The reversal of 27650501149 is 94110505672.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27650501149 - 2³ = 27650501141 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 (27650501141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206346957 + ... + 206347090.

It is an arithmetic number, because the mean of its divisors is an integer number (7015798816).

Almost surely, 2^27650501149 is an apocalyptic number.

It is an amenable number.

27650501149 is a deficient number, since it is larger than the sum of its proper divisors (412694115).

27650501149 is an equidigital number, since it uses as much as digits as its factorization.

27650501149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412694114.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 27650501149 in words is "twenty-seven billion, six hundred fifty million, five hundred one thousand, one hundred forty-nine".