39239566049 has 2 divisors, whose sum is σ = 39239566050. Its totient is φ = 39239566048.

The previous prime is 39239566019. The next prime is 39239566097. The reversal of 39239566049 is 94066593293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25604800225 + 13634765824 = 160015^2 + 116768^2 .

It is a cyclic number.

It is not a de Polignac number, because 39239566049 - 2¹⁶ = 39239500513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39239565985 and 39239566003.

It is not a weakly prime, because it can be changed into another prime (39239566019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19619783024 + 19619783025.

It is an arithmetic number, because the mean of its divisors is an integer number (19619783025).

Almost surely, 2^39239566049 is an apocalyptic number.

It is an amenable number.

39239566049 is a deficient number, since it is larger than the sum of its proper divisors (1).

39239566049 is an equidigital number, since it uses as much as digits as its factorization.

39239566049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9447840, while the sum is 56.

The spelling of 39239566049 in words is "thirty-nine billion, two hundred thirty-nine million, five hundred sixty-six thousand, forty-nine".