866473780513 has 8 divisors (see below), whose sum is σ = 945398071296. Its totient is φ = 787575147600.

The previous prime is 866473780499. The next prime is 866473780531. The reversal of 866473780513 is 315087374668.

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-866473780513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866473780573) 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, 6343818 + ... + 6478963.

It is an arithmetic number, because the mean of its divisors is an integer number (118174758912).

Almost surely, 2^866473780513 is an apocalyptic number.

It is an amenable number.

866473780513 is a deficient number, since it is larger than the sum of its proper divisors (78924290783).

866473780513 is a wasteful number, since it uses less digits than its factorization.

866473780513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12828935.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 866473780513 in words is "eight hundred sixty-six billion, four hundred seventy-three million, seven hundred eighty thousand, five hundred thirteen".