27213020293 has 2 divisors, whose sum is σ = 27213020294. Its totient is φ = 27213020292.

The previous prime is 27213020251. The next prime is 27213020299. The reversal of 27213020293 is 39202031272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13952806884 + 13260213409 = 118122^2 + 115153^2 .

It is a cyclic number.

It is not a de Polignac number, because 27213020293 - 2²¹ = 27210923141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27213020299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13606510146 + 13606510147.

It is an arithmetic number, because the mean of its divisors is an integer number (13606510147).

Almost surely, 2^27213020293 is an apocalyptic number.

It is an amenable number.

27213020293 is a deficient number, since it is larger than the sum of its proper divisors (1).

27213020293 is an equidigital number, since it uses as much as digits as its factorization.

27213020293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 27213020293 in words is "twenty-seven billion, two hundred thirteen million, twenty thousand, two hundred ninety-three".