39949075605 has 16 divisors (see below), whose sum is σ = 63926208000. Its totient is φ = 21303611328.

The previous prime is 39949075601. The next prime is 39949075633. The reversal of 39949075605 is 50657094993.

It is not a de Polignac number, because 39949075605 - 2² = 39949075601 is a prime.

It is a super-2 number, since 2×39949075605² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39949075601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27730 + ... + 284019.

It is an arithmetic number, because the mean of its divisors is an integer number (3995388000).

Almost surely, 2^39949075605 is an apocalyptic number.

It is an amenable number.

39949075605 is a deficient number, since it is larger than the sum of its proper divisors (23977132395).

39949075605 is a wasteful number, since it uses less digits than its factorization.

39949075605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320300.

The product of its (nonzero) digits is 9185400, while the sum is 57.

The spelling of 39949075605 in words is "thirty-nine billion, nine hundred forty-nine million, seventy-five thousand, six hundred five".