39970358797 has 2 divisors, whose sum is σ = 39970358798. Its totient is φ = 39970358796.

The previous prime is 39970358783. The next prime is 39970358821. The reversal of 39970358797 is 79785307993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39355021161 + 615337636 = 198381^2 + 24806^2 .

It is a cyclic number.

It is not a de Polignac number, because 39970358797 - 2¹¹ = 39970356749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39970358737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19985179398 + 19985179399.

It is an arithmetic number, because the mean of its divisors is an integer number (19985179399).

Almost surely, 2^39970358797 is an apocalyptic number.

It is an amenable number.

39970358797 is a deficient number, since it is larger than the sum of its proper divisors (1).

39970358797 is an equidigital number, since it uses as much as digits as its factorization.

39970358797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90016920, while the sum is 67.

The spelling of 39970358797 in words is "thirty-nine billion, nine hundred seventy million, three hundred fifty-eight thousand, seven hundred ninety-seven".