215482568377 has 2 divisors, whose sum is σ = 215482568378. Its totient is φ = 215482568376.

The previous prime is 215482568351. The next prime is 215482568407. The reversal of 215482568377 is 773865284512.

215482568377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176256389241 + 39226179136 = 419829^2 + 198056^2 .

It is a cyclic number.

It is not a de Polignac number, because 215482568377 - 2¹¹ = 215482566329 is a prime.

It is not a weakly prime, because it can be changed into another prime (215482568347) 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, 107741284188 + 107741284189.

It is an arithmetic number, because the mean of its divisors is an integer number (107741284189).

Almost surely, 2^215482568377 is an apocalyptic number.

It is an amenable number.

215482568377 is a deficient number, since it is larger than the sum of its proper divisors (1).

215482568377 is an equidigital number, since it uses as much as digits as its factorization.

215482568377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22579200, while the sum is 58.

The spelling of 215482568377 in words is "two hundred fifteen billion, four hundred eighty-two million, five hundred sixty-eight thousand, three hundred seventy-seven".