6448015045999 has 4 divisors (see below), whose sum is σ = 6448475270920. Its totient is φ = 6447554821080.

The previous prime is 6448015045981. The next prime is 6448015046017. The reversal of 6448015045999 is 9995405108446.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6448015045981) and next prime (6448015046017).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6448015045999 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 6448015045999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448015045909) 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, 230091444 + ... + 230119465.

It is an arithmetic number, because the mean of its divisors is an integer number (1612118817730).

Almost surely, 2^{6448015045999} is an apocalyptic number.

6448015045999 is a deficient number, since it is larger than the sum of its proper divisors (460224921).

6448015045999 is a wasteful number, since it uses less digits than its factorization.

6448015045999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460224920.

The product of its (nonzero) digits is 55987200, while the sum is 64.

The spelling of 6448015045999 in words is "six trillion, four hundred forty-eight billion, fifteen million, forty-five thousand, nine hundred ninety-nine".