209393062453 has 2 divisors, whose sum is σ = 209393062454. Its totient is φ = 209393062452.

The previous prime is 209393062397. The next prime is 209393062477. The reversal of 209393062453 is 354260393902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169145480529 + 40247581924 = 411273^2 + 200618^2 .

It is a cyclic number.

It is not a de Polignac number, because 209393062453 - 2¹³ = 209393054261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209393068453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104696531226 + 104696531227.

It is an arithmetic number, because the mean of its divisors is an integer number (104696531227).

Almost surely, 2^209393062453 is an apocalyptic number.

It is an amenable number.

209393062453 is a deficient number, since it is larger than the sum of its proper divisors (1).

209393062453 is an equidigital number, since it uses as much as digits as its factorization.

209393062453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1049760, while the sum is 46.

The spelling of 209393062453 in words is "two hundred nine billion, three hundred ninety-three million, sixty-two thousand, four hundred fifty-three".