6479779759 has 2 divisors, whose sum is σ = 6479779760. Its totient is φ = 6479779758.

The previous prime is 6479779739. The next prime is 6479779781. The reversal of 6479779759 is 9579779746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6479779759 - 2¹³ = 6479771567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6479779739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3239889879 + 3239889880.

It is an arithmetic number, because the mean of its divisors is an integer number (3239889880).

Almost surely, 2^6479779759 is an apocalyptic number.

6479779759 is a deficient number, since it is larger than the sum of its proper divisors (1).

6479779759 is an equidigital number, since it uses as much as digits as its factorization.

6479779759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 210039480, while the sum is 70.

The square root of 6479779759 is about 80497.0791954590. The cubic root of 6479779759 is about 1864.3183817283.

The spelling of 6479779759 in words is "six billion, four hundred seventy-nine million, seven hundred seventy-nine thousand, seven hundred fifty-nine".