39139995866069 has 8 divisors (see below), whose sum is σ = 44731955476608. Its totient is φ = 33548169162960.

The previous prime is 39139995866057. The next prime is 39139995866089. The reversal of 39139995866069 is 96066859993193.

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

It is a cyclic number.

It is not a de Polignac number, because 39139995866069 - 2⁴ = 39139995866053 is a prime.

It is a super-2 number, since 2×39139995866069² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39139995866009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32595002 + ... + 33774459.

It is an arithmetic number, because the mean of its divisors is an integer number (5591494434576).

Almost surely, 2^{39139995866069} is an apocalyptic number.

It is an amenable number.

39139995866069 is a deficient number, since it is larger than the sum of its proper divisors (5591959610539).

39139995866069 is an equidigital number, since it uses as much as digits as its factorization.

39139995866069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66453715.

The product of its (nonzero) digits is 4591650240, while the sum is 83.

The spelling of 39139995866069 in words is "thirty-nine trillion, one hundred thirty-nine billion, nine hundred ninety-five million, eight hundred sixty-six thousand, sixty-nine".