39909932653 has 8 divisors (see below), whose sum is σ = 40189887000. Its totient is φ = 39630139968.

The previous prime is 39909932633. The next prime is 39909932669. The reversal of 39909932653 is 35623990993.

It can be written as a sum of positive squares in 4 ways, for example, as 1272919684 + 38637012969 = 35678^2 + 196563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39909932653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39909932633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478275 + ... + 555487.

It is an arithmetic number, because the mean of its divisors is an integer number (5023735875).

Almost surely, 2^39909932653 is an apocalyptic number.

It is an amenable number.

39909932653 is a deficient number, since it is larger than the sum of its proper divisors (279954347).

39909932653 is a wasteful number, since it uses less digits than its factorization.

39909932653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80831.

The product of its (nonzero) digits is 10628820, while the sum is 58.

The spelling of 39909932653 in words is "thirty-nine billion, nine hundred nine million, nine hundred thirty-two thousand, six hundred fifty-three".