6679519523 has 4 divisors (see below), whose sum is σ = 6684554400. Its totient is φ = 6674484648.

The previous prime is 6679519513. The next prime is 6679519531. The reversal of 6679519523 is 3259159766.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6679519523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6679519513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515448 + ... + 2518101.

It is an arithmetic number, because the mean of its divisors is an integer number (1671138600).

Almost surely, 2^6679519523 is an apocalyptic number.

6679519523 is a deficient number, since it is larger than the sum of its proper divisors (5034877).

6679519523 is a wasteful number, since it uses less digits than its factorization.

6679519523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034876.

The product of its digits is 3061800, while the sum is 53.

The square root of 6679519523 is about 81728.3275431475. The cubic root of 6679519523 is about 1883.2807814053.

The spelling of 6679519523 in words is "six billion, six hundred seventy-nine million, five hundred nineteen thousand, five hundred twenty-three".