39469313813 has 2 divisors, whose sum is σ = 39469313814. Its totient is φ = 39469313812.

The previous prime is 39469313803. The next prime is 39469313887. The reversal of 39469313813 is 31831396493.

39469313813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30697492849 + 8771820964 = 175207^2 + 93658^2 .

It is a cyclic number.

It is not a de Polignac number, because 39469313813 - 2¹⁰ = 39469312789 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 (39469313803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19734656906 + 19734656907.

It is an arithmetic number, because the mean of its divisors is an integer number (19734656907).

Almost surely, 2^39469313813 is an apocalyptic number.

It is an amenable number.

39469313813 is a deficient number, since it is larger than the sum of its proper divisors (1).

39469313813 is an equidigital number, since it uses as much as digits as its factorization.

39469313813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 50.

The spelling of 39469313813 in words is "thirty-nine billion, four hundred sixty-nine million, three hundred thirteen thousand, eight hundred thirteen".