39429386911 has 2 divisors, whose sum is σ = 39429386912. Its totient is φ = 39429386910.

The previous prime is 39429386903. The next prime is 39429386981. The reversal of 39429386911 is 11968392493.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39429386911 - 2³ = 39429386903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39429386981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19714693455 + 19714693456.

It is an arithmetic number, because the mean of its divisors is an integer number (19714693456).

Almost surely, 2^39429386911 is an apocalyptic number.

39429386911 is a deficient number, since it is larger than the sum of its proper divisors (1).

39429386911 is an equidigital number, since it uses as much as digits as its factorization.

39429386911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2519424, while the sum is 55.

The spelling of 39429386911 in words is "thirty-nine billion, four hundred twenty-nine million, three hundred eighty-six thousand, nine hundred eleven".