866833716425 has 6 divisors (see below), whose sum is σ = 1074873808398. Its totient is φ = 693466973120.

The previous prime is 866833716389. The next prime is 866833716457. The reversal of 866833716425 is 524617338668.

It can be written as a sum of positive squares in 3 ways, for example, as 272976990784 + 593856725641 = 522472^2 + 770621^2 .

It is a de Polignac number, because none of the positive numbers 2^k-866833716425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17336674304 + ... + 17336674353.

It is an arithmetic number, because the mean of its divisors is an integer number (179145634733).

Almost surely, 2^866833716425 is an apocalyptic number.

It is an amenable number.

866833716425 is a deficient number, since it is larger than the sum of its proper divisors (208040091973).

866833716425 is a wasteful number, since it uses less digits than its factorization.

866833716425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34673348667 (or 34673348662 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 59.

The spelling of 866833716425 in words is "eight hundred sixty-six billion, eight hundred thirty-three million, seven hundred sixteen thousand, four hundred twenty-five".