867083221777 has 2 divisors, whose sum is σ = 867083221778. Its totient is φ = 867083221776.

The previous prime is 867083221751. The next prime is 867083221897. The reversal of 867083221777 is 777122380768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 864037175296 + 3046046481 = 929536^2 + 55191^2 .

It is a cyclic number.

It is not a de Polignac number, because 867083221777 - 2¹⁵ = 867083189009 is a prime.

It is not a weakly prime, because it can be changed into another prime (867083225777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433541610888 + 433541610889.

It is an arithmetic number, because the mean of its divisors is an integer number (433541610889).

Almost surely, 2^867083221777 is an apocalyptic number.

It is an amenable number.

867083221777 is a deficient number, since it is larger than the sum of its proper divisors (1).

867083221777 is an equidigital number, since it uses as much as digits as its factorization.

867083221777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11063808, while the sum is 58.

The spelling of 867083221777 in words is "eight hundred sixty-seven billion, eighty-three million, two hundred twenty-one thousand, seven hundred seventy-seven".