415820068309 has 2 divisors, whose sum is σ = 415820068310. Its totient is φ = 415820068308.

The previous prime is 415820068297. The next prime is 415820068331. The reversal of 415820068309 is 903860028514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328294620900 + 87525447409 = 572970^2 + 295847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415820068309 is a prime.

It is a super-2 number, since 2×415820068309² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415820068369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207910034154 + 207910034155.

It is an arithmetic number, because the mean of its divisors is an integer number (207910034155).

Almost surely, 2^415820068309 is an apocalyptic number.

It is an amenable number.

415820068309 is a deficient number, since it is larger than the sum of its proper divisors (1).

415820068309 is an equidigital number, since it uses as much as digits as its factorization.

415820068309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 415820068309 in words is "four hundred fifteen billion, eight hundred twenty million, sixty-eight thousand, three hundred nine".