6109909539 has 4 divisors (see below), whose sum is σ = 8146546056. Its totient is φ = 4073273024.

The previous prime is 6109909529. The next prime is 6109909571. The reversal of 6109909539 is 9359099016.

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 6109909539 - 2⁴ = 6109909523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6109909491 and 6109909500.

It is not an unprimeable number, because it can be changed into a prime (6109909529) 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, 1018318254 + ... + 1018318259.

It is an arithmetic number, because the mean of its divisors is an integer number (2036636514).

Almost surely, 2^6109909539 is an apocalyptic number.

6109909539 is a deficient number, since it is larger than the sum of its proper divisors (2036636517).

6109909539 is a wasteful number, since it uses less digits than its factorization.

6109909539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036636516.

The product of its (nonzero) digits is 590490, while the sum is 51.

The square root of 6109909539 is about 78165.9103382031. The cubic root of 6109909539 is about 1828.1490176732.

The spelling of 6109909539 in words is "six billion, one hundred nine million, nine hundred nine thousand, five hundred thirty-nine".