213353581477 has 2 divisors, whose sum is σ = 213353581478. Its totient is φ = 213353581476.

The previous prime is 213353581459. The next prime is 213353581583. The reversal of 213353581477 is 774185353312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191816844961 + 21536736516 = 437969^2 + 146754^2 .

It is a cyclic number.

It is not a de Polignac number, because 213353581477 - 2²³ = 213345192869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213353581477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213353581417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106676790738 + 106676790739.

It is an arithmetic number, because the mean of its divisors is an integer number (106676790739).

Almost surely, 2^213353581477 is an apocalyptic number.

It is an amenable number.

213353581477 is a deficient number, since it is larger than the sum of its proper divisors (1).

213353581477 is an equidigital number, since it uses as much as digits as its factorization.

213353581477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 49.

The spelling of 213353581477 in words is "two hundred thirteen billion, three hundred fifty-three million, five hundred eighty-one thousand, four hundred seventy-seven".