39497842099 has 2 divisors, whose sum is σ = 39497842100. Its totient is φ = 39497842098.

The previous prime is 39497842073. The next prime is 39497842117. The reversal of 39497842099 is 99024879493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39497842099 - 2⁹ = 39497841587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39497842099.

It is not a weakly prime, because it can be changed into another prime (39497842019) 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, 19748921049 + 19748921050.

It is an arithmetic number, because the mean of its divisors is an integer number (19748921050).

Almost surely, 2^39497842099 is an apocalyptic number.

39497842099 is a deficient number, since it is larger than the sum of its proper divisors (1).

39497842099 is an equidigital number, since it uses as much as digits as its factorization.

39497842099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 39497842099 in words is "thirty-nine billion, four hundred ninety-seven million, eight hundred forty-two thousand, ninety-nine".