6479779745 has 8 divisors (see below), whose sum is σ = 7776522240. Its totient is φ = 5183299440.

The previous prime is 6479779739. The next prime is 6479779759. The reversal of 6479779745 is 5479779746.

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

It is not a de Polignac number, because 6479779745 - 2¹⁸ = 6479517601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6305 + ... + 114014.

It is an arithmetic number, because the mean of its divisors is an integer number (972065280).

Almost surely, 2^6479779745 is an apocalyptic number.

It is an amenable number.

6479779745 is a deficient number, since it is larger than the sum of its proper divisors (1296742495).

6479779745 is a wasteful number, since it uses less digits than its factorization.

6479779745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131095.

The product of its digits is 93350880, while the sum is 65.

The square root of 6479779745 is about 80497.0791084993. The cubic root of 6479779745 is about 1864.3183803856.

Subtracting from 6479779745 its reverse (5479779746), we obtain a palindrome (999999999).

The spelling of 6479779745 in words is "six billion, four hundred seventy-nine million, seven hundred seventy-nine thousand, seven hundred forty-five".