7939338636109 has 4 divisors (see below), whose sum is σ = 8195446334080. Its totient is φ = 7683230938140.

The previous prime is 7939338636079. The next prime is 7939338636133. The reversal of 7939338636109 is 9016368339397.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7939338636109 - 2¹¹ = 7939338634061 is a prime.

It is a super-3 number, since 3×7939338636109³ (a number of 40 digits) contains 333 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 (7939338636169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128053848939 + ... + 128053849000.

It is an arithmetic number, because the mean of its divisors is an integer number (2048861583520).

Almost surely, 2^{7939338636109} is an apocalyptic number.

It is an amenable number.

7939338636109 is a deficient number, since it is larger than the sum of its proper divisors (256107697971).

7939338636109 is a wasteful number, since it uses less digits than its factorization.

7939338636109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256107697970.

The product of its (nonzero) digits is 119042784, while the sum is 67.

The spelling of 7939338636109 in words is "seven trillion, nine hundred thirty-nine billion, three hundred thirty-eight million, six hundred thirty-six thousand, one hundred nine".