21699750341 has 2 divisors, whose sum is σ = 21699750342. Its totient is φ = 21699750340.

The previous prime is 21699750287. The next prime is 21699750367. The reversal of 21699750341 is 14305799612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21554644225 + 145106116 = 146815^2 + 12046^2 .

It is a cyclic number.

It is not a de Polignac number, because 21699750341 - 2⁶ = 21699750277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21699770341) 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, 10849875170 + 10849875171.

It is an arithmetic number, because the mean of its divisors is an integer number (10849875171).

Almost surely, 2^21699750341 is an apocalyptic number.

It is an amenable number.

21699750341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21699750341 is an equidigital number, since it uses as much as digits as its factorization.

21699750341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 21699750341 in words is "twenty-one billion, six hundred ninety-nine million, seven hundred fifty thousand, three hundred forty-one".