39303481397 has 2 divisors, whose sum is σ = 39303481398. Its totient is φ = 39303481396.

The previous prime is 39303481331. The next prime is 39303481403. The reversal of 39303481397 is 79318430393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38200311601 + 1103169796 = 195449^2 + 33214^2 .

It is a cyclic number.

It is not a de Polignac number, because 39303481397 - 2²⁶ = 39236372533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39303481097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19651740698 + 19651740699.

It is an arithmetic number, because the mean of its divisors is an integer number (19651740699).

Almost surely, 2^39303481397 is an apocalyptic number.

It is an amenable number.

39303481397 is a deficient number, since it is larger than the sum of its proper divisors (1).

39303481397 is an equidigital number, since it uses as much as digits as its factorization.

39303481397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 39303481397 in words is "thirty-nine billion, three hundred three million, four hundred eighty-one thousand, three hundred ninety-seven".