39247324489 has 2 divisors, whose sum is σ = 39247324490. Its totient is φ = 39247324488.

The previous prime is 39247324429. The next prime is 39247324513. The reversal of 39247324489 is 98442374293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38889812025 + 357512464 = 197205^2 + 18908^2 .

It is an emirp because it is prime and its reverse (98442374293) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39247324489 is a prime.

It is a super-2 number, since 2×39247324489² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39247324429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19623662244 + 19623662245.

It is an arithmetic number, because the mean of its divisors is an integer number (19623662245).

Almost surely, 2^39247324489 is an apocalyptic number.

It is an amenable number.

39247324489 is a deficient number, since it is larger than the sum of its proper divisors (1).

39247324489 is an equidigital number, since it uses as much as digits as its factorization.

39247324489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 55.

The spelling of 39247324489 in words is "thirty-nine billion, two hundred forty-seven million, three hundred twenty-four thousand, four hundred eighty-nine".