409022957667869 has 2 divisors, whose sum is σ = 409022957667870. Its totient is φ = 409022957667868.

The previous prime is 409022957667809. The next prime is 409022957667881. The reversal of 409022957667869 is 968766759220904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378203117028025 + 30819840639844 = 19447445^2 + 5551562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409022957667869 is a prime.

It is a super-2 number, since 2×409022957667869² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 409022957667793 and 409022957667802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409022957667809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204511478833934 + 204511478833935.

It is an arithmetic number, because the mean of its divisors is an integer number (204511478833935).

Almost surely, 2^{409022957667869} is an apocalyptic number.

It is an amenable number.

409022957667869 is a deficient number, since it is larger than the sum of its proper divisors (1).

409022957667869 is an equidigital number, since it uses as much as digits as its factorization.

409022957667869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4938071040, while the sum is 80.

The spelling of 409022957667869 in words is "four hundred nine trillion, twenty-two billion, nine hundred fifty-seven million, six hundred sixty-seven thousand, eight hundred sixty-nine".