39130321969 has 2 divisors, whose sum is σ = 39130321970. Its totient is φ = 39130321968.

The previous prime is 39130321961. The next prime is 39130322047. The reversal of 39130321969 is 96912303193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20681891344 + 18448430625 = 143812^2 + 135825^2 .

It is an emirp because it is prime and its reverse (96912303193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39130321969 - 2³ = 39130321961 is a prime.

It is a super-2 number, since 2×39130321969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39130321961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19565160984 + 19565160985.

It is an arithmetic number, because the mean of its divisors is an integer number (19565160985).

Almost surely, 2^39130321969 is an apocalyptic number.

It is an amenable number.

39130321969 is a deficient number, since it is larger than the sum of its proper divisors (1).

39130321969 is an equidigital number, since it uses as much as digits as its factorization.

39130321969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 46.

The spelling of 39130321969 in words is "thirty-nine billion, one hundred thirty million, three hundred twenty-one thousand, nine hundred sixty-nine".