6448860515 has 16 divisors (see below), whose sum is σ = 7849135008. Its totient is φ = 5085501696.

The previous prime is 6448860487. The next prime is 6448860541. The reversal of 6448860515 is 5150688446.

It is a cyclic number.

It is not a de Polignac number, because 6448860515 - 2¹⁰ = 6448859491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6448860515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814757 + ... + 822633.

It is an arithmetic number, because the mean of its divisors is an integer number (490570938).

Almost surely, 2^6448860515 is an apocalyptic number.

6448860515 is a deficient number, since it is larger than the sum of its proper divisors (1400274493).

6448860515 is a wasteful number, since it uses less digits than its factorization.

6448860515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10198.

The product of its (nonzero) digits is 921600, while the sum is 47.

The square root of 6448860515 is about 80304.7975839551. The cubic root of 6448860515 is about 1861.3483608586.

The spelling of 6448860515 in words is "six billion, four hundred forty-eight million, eight hundred sixty thousand, five hundred fifteen".