39500320073 has 2 divisors, whose sum is σ = 39500320074. Its totient is φ = 39500320072.

The previous prime is 39500320061. The next prime is 39500320133. The reversal of 39500320073 is 37002300593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37841142784 + 1659177289 = 194528^2 + 40733^2 .

It is a cyclic number.

It is not a de Polignac number, because 39500320073 - 2¹⁰ = 39500319049 is a prime.

It is not a weakly prime, because it can be changed into another prime (39500320003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19750160036 + 19750160037.

It is an arithmetic number, because the mean of its divisors is an integer number (19750160037).

Almost surely, 2^39500320073 is an apocalyptic number.

It is an amenable number.

39500320073 is a deficient number, since it is larger than the sum of its proper divisors (1).

39500320073 is an equidigital number, since it uses as much as digits as its factorization.

39500320073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 32.

The spelling of 39500320073 in words is "thirty-nine billion, five hundred million, three hundred twenty thousand, seventy-three".