39454430369 has 2 divisors, whose sum is σ = 39454430370. Its totient is φ = 39454430368.

The previous prime is 39454430341. The next prime is 39454430417. The reversal of 39454430369 is 96303445493.

39454430369 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., 33438876769 + 6015553600 = 182863^2 + 77560^2 .

It is an emirp because it is prime and its reverse (96303445493) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39454430369 is a prime.

It is a super-2 number, since 2×39454430369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39454430269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19727215184 + 19727215185.

It is an arithmetic number, because the mean of its divisors is an integer number (19727215185).

Almost surely, 2^39454430369 is an apocalyptic number.

It is an amenable number.

39454430369 is a deficient number, since it is larger than the sum of its proper divisors (1).

39454430369 is an equidigital number, since it uses as much as digits as its factorization.

39454430369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 50.

The spelling of 39454430369 in words is "thirty-nine billion, four hundred fifty-four million, four hundred thirty thousand, three hundred sixty-nine".