6479451959 has 4 divisors (see below), whose sum is σ = 6552254880. Its totient is φ = 6406649040.

The previous prime is 6479451931. The next prime is 6479452019. The reversal of 6479451959 is 9591549746.

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 6479451959 - 2²⁰ = 6478403383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6479451898 and 6479451907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6479451919) 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, 36401327 + ... + 36401504.

It is an arithmetic number, because the mean of its divisors is an integer number (1638063720).

Almost surely, 2^6479451959 is an apocalyptic number.

6479451959 is a deficient number, since it is larger than the sum of its proper divisors (72802921).

6479451959 is an equidigital number, since it uses as much as digits as its factorization.

6479451959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72802920.

The product of its digits is 12247200, while the sum is 59.

The square root of 6479451959 is about 80495.0430709867. The cubic root of 6479451959 is about 1864.2869437322.

The spelling of 6479451959 in words is "six billion, four hundred seventy-nine million, four hundred fifty-one thousand, nine hundred fifty-nine".