6169940005 has 4 divisors (see below), whose sum is σ = 7403928012. Its totient is φ = 4935952000.

The previous prime is 6169939949. The next prime is 6169940009. The reversal of 6169940005 is 5000499616.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1870908516 + 4299031489 = 43254^2 + 65567^2 .

It is not a de Polignac number, because 6169940005 - 2⁹ = 6169939493 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6169940005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6169940009) 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, 616993996 + ... + 616994005.

It is an arithmetic number, because the mean of its divisors is an integer number (1850982003).

Almost surely, 2^6169940005 is an apocalyptic number.

It is an amenable number.

6169940005 is a deficient number, since it is larger than the sum of its proper divisors (1233988007).

6169940005 is a wasteful number, since it uses less digits than its factorization.

6169940005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233988006.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 6169940005 is about 78548.9656520059. The cubic root of 6169940005 is about 1834.1167639234.

The spelling of 6169940005 in words is "six billion, one hundred sixty-nine million, nine hundred forty thousand, five".