39413027909 has 2 divisors, whose sum is σ = 39413027910. Its totient is φ = 39413027908.

The previous prime is 39413027881. The next prime is 39413027939. The reversal of 39413027909 is 90972031493.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39178264225 + 234763684 = 197935^2 + 15322^2 .

It is a cyclic number.

It is not a de Polignac number, because 39413027909 - 2⁸ = 39413027653 is a prime.

It is a super-2 number, since 2×39413027909² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39413027939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19706513954 + 19706513955.

It is an arithmetic number, because the mean of its divisors is an integer number (19706513955).

Almost surely, 2^39413027909 is an apocalyptic number.

It is an amenable number.

39413027909 is a deficient number, since it is larger than the sum of its proper divisors (1).

39413027909 is an equidigital number, since it uses as much as digits as its factorization.

39413027909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 39413027909 in words is "thirty-nine billion, four hundred thirteen million, twenty-seven thousand, nine hundred nine".