27955326213 has 12 divisors (see below), whose sum is σ = 40613327820. Its totient is φ = 18529155456.

The previous prime is 27955326193. The next prime is 27955326229. The reversal of 27955326213 is 31262355972.

27955326213 is a `hidden beast` number, since 2 + 7 + 95 + 532 + 6 + 21 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19909774404 + 8045551809 = 141102^2 + 89697^2 .

It is not a de Polignac number, because 27955326213 - 2⁵ = 27955326181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27955326263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8975748 + ... + 8978861.

It is an arithmetic number, because the mean of its divisors is an integer number (3384443985).

Almost surely, 2^27955326213 is an apocalyptic number.

It is an amenable number.

27955326213 is a deficient number, since it is larger than the sum of its proper divisors (12658001607).

27955326213 is a wasteful number, since it uses less digits than its factorization.

27955326213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17954788 (or 17954785 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The spelling of 27955326213 in words is "twenty-seven billion, nine hundred fifty-five million, three hundred twenty-six thousand, two hundred thirteen".