39353850997 has 2 divisors, whose sum is σ = 39353850998. Its totient is φ = 39353850996.

The previous prime is 39353850959. The next prime is 39353851003. The reversal of 39353850997 is 79905835393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39073824241 + 280026756 = 197671^2 + 16734^2 .

It is an emirp because it is prime and its reverse (79905835393) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39353850997 - 2¹¹ = 39353848949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39353850937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19676925498 + 19676925499.

It is an arithmetic number, because the mean of its divisors is an integer number (19676925499).

Almost surely, 2^39353850997 is an apocalyptic number.

It is an amenable number.

39353850997 is a deficient number, since it is larger than the sum of its proper divisors (1).

39353850997 is an equidigital number, since it uses as much as digits as its factorization.

39353850997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27556200, while the sum is 61.

The spelling of 39353850997 in words is "thirty-nine billion, three hundred fifty-three million, eight hundred fifty thousand, nine hundred ninety-seven".