6511143200873 has 8 divisors (see below), whose sum is σ = 6708506212296. Its totient is φ = 6315616124800.

The previous prime is 6511143200803. The next prime is 6511143200897. The reversal of 6511143200873 is 3780023411156.

It can be written as a sum of positive squares in 4 ways, for example, as 608420280169 + 5902722920704 = 780013^2 + 2429552^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6511143200873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

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 6511143200873.

It is not an unprimeable number, because it can be changed into a prime (6511143200803) 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, 458976638 + ... + 458990823.

It is an arithmetic number, because the mean of its divisors is an integer number (838563276537).

Almost surely, 2^{6511143200873} is an apocalyptic number.

It is an amenable number.

6511143200873 is a deficient number, since it is larger than the sum of its proper divisors (197363011423).

6511143200873 is a wasteful number, since it uses less digits than its factorization.

6511143200873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917967675.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 6511143200873 in words is "six trillion, five hundred eleven billion, one hundred forty-three million, two hundred thousand, eight hundred seventy-three".