6696138741 has 8 divisors (see below), whose sum is σ = 9316367040. Its totient is φ = 4270001472.

The previous prime is 6696138689. The next prime is 6696138749. The reversal of 6696138741 is 1478316966.

It is a happy number.

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

It is not a de Polignac number, because 6696138741 - 2²³ = 6687750133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6696138749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48522676 + ... + 48522813.

It is an arithmetic number, because the mean of its divisors is an integer number (1164545880).

Almost surely, 2^6696138741 is an apocalyptic number.

It is an amenable number.

6696138741 is a deficient number, since it is larger than the sum of its proper divisors (2620228299).

6696138741 is a wasteful number, since it uses less digits than its factorization.

6696138741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97045515.

The product of its digits is 1306368, while the sum is 51.

The square root of 6696138741 is about 81829.9379261649. The cubic root of 6696138741 is about 1884.8414092151.

The spelling of 6696138741 in words is "six billion, six hundred ninety-six million, one hundred thirty-eight thousand, seven hundred forty-one".