39539345069 has 16 divisors (see below), whose sum is σ = 46025495040. Its totient is φ = 33264408240.

The previous prime is 39539345051. The next prime is 39539345129. The reversal of 39539345069 is 96054393593.

39539345069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-39539345069 is a prime.

It is a super-2 number, since 2×39539345069² (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 (39539345009) 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, 191114 + ... + 340004.

It is an arithmetic number, because the mean of its divisors is an integer number (2876593440).

Almost surely, 2^39539345069 is an apocalyptic number.

It is an amenable number.

39539345069 is a deficient number, since it is larger than the sum of its proper divisors (6486149971).

39539345069 is a wasteful number, since it uses less digits than its factorization.

39539345069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149600.

The product of its (nonzero) digits is 11809800, while the sum is 56.

The spelling of 39539345069 in words is "thirty-nine billion, five hundred thirty-nine million, three hundred forty-five thousand, sixty-nine".