6859208890361 has 2 divisors, whose sum is σ = 6859208890362. Its totient is φ = 6859208890360.

The previous prime is 6859208890319. The next prime is 6859208890367. The reversal of 6859208890361 is 1630988029586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6666724000000 + 192484890361 = 2582000^2 + 438731^2 .

It is a cyclic number.

It is not a de Polignac number, because 6859208890361 - 2³⁰ = 6858135148537 is a prime.

It is not a weakly prime, because it can be changed into another prime (6859208890367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3429604445180 + 3429604445181.

It is an arithmetic number, because the mean of its divisors is an integer number (3429604445181).

Almost surely, 2^{6859208890361} is an apocalyptic number.

It is an amenable number.

6859208890361 is a deficient number, since it is larger than the sum of its proper divisors (1).

6859208890361 is an equidigital number, since it uses as much as digits as its factorization.

6859208890361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44789760, while the sum is 65.

The spelling of 6859208890361 in words is "six trillion, eight hundred fifty-nine billion, two hundred eight million, eight hundred ninety thousand, three hundred sixty-one".