27570215742473 has 2 divisors, whose sum is σ = 27570215742474. Its totient is φ = 27570215742472.

The previous prime is 27570215742401. The next prime is 27570215742539. The reversal of 27570215742473 is 37424751207572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23445709673929 + 4124506068544 = 4842077^2 + 2030888^2 .

It is a cyclic number.

It is not a de Polignac number, because 27570215742473 - 2¹⁰ = 27570215741449 is a prime.

It is not a weakly prime, because it can be changed into another prime (27570215742673) 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, 13785107871236 + 13785107871237.

It is an arithmetic number, because the mean of its divisors is an integer number (13785107871237).

Almost surely, 2^{27570215742473} is an apocalyptic number.

It is an amenable number.

27570215742473 is a deficient number, since it is larger than the sum of its proper divisors (1).

27570215742473 is an equidigital number, since it uses as much as digits as its factorization.

27570215742473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23049600, while the sum is 56.

The spelling of 27570215742473 in words is "twenty-seven trillion, five hundred seventy billion, two hundred fifteen million, seven hundred forty-two thousand, four hundred seventy-three".