27494925149 has 2 divisors, whose sum is σ = 27494925150. Its totient is φ = 27494925148.

The previous prime is 27494925113. The next prime is 27494925193. The reversal of 27494925149 is 94152949472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23159361124 + 4335564025 = 152182^2 + 65845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27494925149 is a prime.

It is a super-2 number, since 2×27494925149² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27494925094 and 27494925103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27494925049) 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 as a sum of consecutive naturals, namely, 13747462574 + 13747462575.

It is an arithmetic number, because the mean of its divisors is an integer number (13747462575).

Almost surely, 2^27494925149 is an apocalyptic number.

It is an amenable number.

27494925149 is a deficient number, since it is larger than the sum of its proper divisors (1).

27494925149 is an equidigital number, since it uses as much as digits as its factorization.

27494925149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 56.

The spelling of 27494925149 in words is "twenty-seven billion, four hundred ninety-four million, nine hundred twenty-five thousand, one hundred forty-nine".