6139528667 has 4 divisors (see below), whose sum is σ = 6406464720. Its totient is φ = 5872592616.

The previous prime is 6139528649. The next prime is 6139528693. The reversal of 6139528667 is 7668259316.

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 6139528667 - 2¹⁴ = 6139512283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6139528867) 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, 133467992 + ... + 133468037.

It is an arithmetic number, because the mean of its divisors is an integer number (1601616180).

Almost surely, 2^6139528667 is an apocalyptic number.

6139528667 is a deficient number, since it is larger than the sum of its proper divisors (266936053).

6139528667 is a wasteful number, since it uses less digits than its factorization.

6139528667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266936052.

The product of its digits is 3265920, while the sum is 53.

The square root of 6139528667 is about 78355.1444833075. The cubic root of 6139528667 is about 1831.0983748285.

The spelling of 6139528667 in words is "six billion, one hundred thirty-nine million, five hundred twenty-eight thousand, six hundred sixty-seven".