39734985349 has 2 divisors, whose sum is σ = 39734985350. Its totient is φ = 39734985348.

The previous prime is 39734985347. The next prime is 39734985373. The reversal of 39734985349 is 94358943793.

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., 22150368900 + 17584616449 = 148830^2 + 132607^2 .

It is a cyclic number.

It is not a de Polignac number, because 39734985349 - 2¹ = 39734985347 is a prime.

Together with 39734985347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39734985341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19867492674 + 19867492675.

It is an arithmetic number, because the mean of its divisors is an integer number (19867492675).

Almost surely, 2^39734985349 is an apocalyptic number.

It is an amenable number.

39734985349 is a deficient number, since it is larger than the sum of its proper divisors (1).

39734985349 is an equidigital number, since it uses as much as digits as its factorization.

39734985349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88179840, while the sum is 64.

The spelling of 39734985349 in words is "thirty-nine billion, seven hundred thirty-four million, nine hundred eighty-five thousand, three hundred forty-nine".