6479609445 has 32 divisors (see below), whose sum is σ = 11570106240. Its totient is φ = 3440551680.

The previous prime is 6479609443. The next prime is 6479609447. The reversal of 6479609445 is 5449069746.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6479609443) and next prime (6479609447).

It is not a de Polignac number, because 6479609445 - 2¹ = 6479609443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6479609391 and 6479609400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6479609443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75076 + ... + 136365.

It is an arithmetic number, because the mean of its divisors is an integer number (361565820).

Almost surely, 2^6479609445 is an apocalyptic number.

It is an amenable number.

6479609445 is a deficient number, since it is larger than the sum of its proper divisors (5090496795).

6479609445 is a wasteful number, since it uses less digits than its factorization.

6479609445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211682 (or 211676 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 6479609445 is about 80496.0212991922. The cubic root of 6479609445 is about 1864.3020477213.

The spelling of 6479609445 in words is "six billion, four hundred seventy-nine million, six hundred nine thousand, four hundred forty-five".