39934664099 has 18 divisors (see below), whose sum is σ = 44125260924. Its totient is φ = 35843304640.

The previous prime is 39934664093. The next prime is 39934664129. The reversal of 39934664099 is 99046643993.

It is a happy number.

It is not a de Polignac number, because 39934664099 - 2³² = 35639696803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39934664093) 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 in 17 ways as a sum of consecutive naturals, for example, 58987349 + ... + 58988025.

Almost surely, 2^39934664099 is an apocalyptic number.

39934664099 is a deficient number, since it is larger than the sum of its proper divisors (4190596825).

39934664099 is an frugal number, since it uses more digits than its factorization.

39934664099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 34012224, while the sum is 62.

The spelling of 39934664099 in words is "thirty-nine billion, nine hundred thirty-four million, six hundred sixty-four thousand, ninety-nine".