10408219709 has 2 divisors, whose sum is σ = 10408219710. Its totient is φ = 10408219708.

The previous prime is 10408219699. The next prime is 10408219813. The reversal of 10408219709 is 90791280401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10393802500 + 14417209 = 101950^2 + 3797^2 .

It is a cyclic number.

It is not a de Polignac number, because 10408219709 - 2¹² = 10408215613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10408219309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5204109854 + 5204109855.

It is an arithmetic number, because the mean of its divisors is an integer number (5204109855).

Almost surely, 2^10408219709 is an apocalyptic number.

It is an amenable number.

10408219709 is a deficient number, since it is larger than the sum of its proper divisors (1).

10408219709 is an equidigital number, since it uses as much as digits as its factorization.

10408219709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 10408219709 in words is "ten billion, four hundred eight million, two hundred nineteen thousand, seven hundred nine".