109379719639 has 4 divisors (see below), whose sum is σ = 109392334024. Its totient is φ = 109367105256.

The previous prime is 109379719607. The next prime is 109379719661. The reversal of 109379719639 is 936917973901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109379719639 - 2⁵ = 109379719607 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 (109379719679) 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, 6294177 + ... + 6311530.

It is an arithmetic number, because the mean of its divisors is an integer number (27348083506).

Almost surely, 2^109379719639 is an apocalyptic number.

109379719639 is a deficient number, since it is larger than the sum of its proper divisors (12614385).

109379719639 is an equidigital number, since it uses as much as digits as its factorization.

109379719639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12614384.

The product of its (nonzero) digits is 17360406, while the sum is 64.

The spelling of 109379719639 in words is "one hundred nine billion, three hundred seventy-nine million, seven hundred nineteen thousand, six hundred thirty-nine".