215486849441 has 2 divisors, whose sum is σ = 215486849442. Its totient is φ = 215486849440.

The previous prime is 215486849429. The next prime is 215486849443. The reversal of 215486849441 is 144948684512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201183646225 + 14303203216 = 448535^2 + 119596^2 .

It is a cyclic number.

It is not a de Polignac number, because 215486849441 - 2³⁰ = 214413107617 is a prime.

Together with 215486849443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (215486849443) 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 as a sum of consecutive naturals, namely, 107743424720 + 107743424721.

It is an arithmetic number, because the mean of its divisors is an integer number (107743424721).

Almost surely, 2^215486849441 is an apocalyptic number.

It is an amenable number.

215486849441 is a deficient number, since it is larger than the sum of its proper divisors (1).

215486849441 is an equidigital number, since it uses as much as digits as its factorization.

215486849441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8847360, while the sum is 56.

The spelling of 215486849441 in words is "two hundred fifteen billion, four hundred eighty-six million, eight hundred forty-nine thousand, four hundred forty-one".