27212929357 has 2 divisors, whose sum is σ = 27212929358. Its totient is φ = 27212929356.

The previous prime is 27212929321. The next prime is 27212929397. The reversal of 27212929357 is 75392921272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18174814596 + 9038114761 = 134814^2 + 95069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27212929357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27212929357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27212929397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13606464678 + 13606464679.

It is an arithmetic number, because the mean of its divisors is an integer number (13606464679).

Almost surely, 2^27212929357 is an apocalyptic number.

It is an amenable number.

27212929357 is a deficient number, since it is larger than the sum of its proper divisors (1).

27212929357 is an equidigital number, since it uses as much as digits as its factorization.

27212929357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The spelling of 27212929357 in words is "twenty-seven billion, two hundred twelve million, nine hundred twenty-nine thousand, three hundred fifty-seven".