39933075389 has 2 divisors, whose sum is σ = 39933075390. Its totient is φ = 39933075388.

The previous prime is 39933075331. The next prime is 39933075397. The reversal of 39933075389 is 98357033993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22095336025 + 17837739364 = 148645^2 + 133558^2 .

It is a cyclic number.

It is not a de Polignac number, because 39933075389 - 2²⁸ = 39664639933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39933077389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19966537694 + 19966537695.

It is an arithmetic number, because the mean of its divisors is an integer number (19966537695).

Almost surely, 2^39933075389 is an apocalyptic number.

It is an amenable number.

39933075389 is a deficient number, since it is larger than the sum of its proper divisors (1).

39933075389 is an equidigital number, since it uses as much as digits as its factorization.

39933075389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16533720, while the sum is 59.

The spelling of 39933075389 in words is "thirty-nine billion, nine hundred thirty-three million, seventy-five thousand, three hundred eighty-nine".