6479615657 has 8 divisors (see below), whose sum is σ = 6822329760. Its totient is φ = 6137069760.

The previous prime is 6479615633. The next prime is 6479615677. The reversal of 6479615657 is 7565169746.

6479615657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6479615657 - 2¹² = 6479611561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6479615677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41282 + ... + 121092.

It is an arithmetic number, because the mean of its divisors is an integer number (852791220).

Almost surely, 2^6479615657 is an apocalyptic number.

It is an amenable number.

6479615657 is a deficient number, since it is larger than the sum of its proper divisors (342714103).

6479615657 is a wasteful number, since it uses less digits than its factorization.

6479615657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84103.

The product of its digits is 9525600, while the sum is 56.

The square root of 6479615657 is about 80496.0598849410. The cubic root of 6479615657 is about 1864.3026434898.

The spelling of 6479615657 in words is "six billion, four hundred seventy-nine million, six hundred fifteen thousand, six hundred fifty-seven".