407823425309 has 2 divisors, whose sum is σ = 407823425310. Its totient is φ = 407823425308.

The previous prime is 407823425287. The next prime is 407823425311. The reversal of 407823425309 is 903524328704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396603955225 + 11219470084 = 629765^2 + 105922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-407823425309 is a prime.

Together with 407823425311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407823425329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203911712654 + 203911712655.

It is an arithmetic number, because the mean of its divisors is an integer number (203911712655).

Almost surely, 2^407823425309 is an apocalyptic number.

It is an amenable number.

407823425309 is a deficient number, since it is larger than the sum of its proper divisors (1).

407823425309 is an equidigital number, since it uses as much as digits as its factorization.

407823425309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 407823425309 in words is "four hundred seven billion, eight hundred twenty-three million, four hundred twenty-five thousand, three hundred nine".