286366621421 has 2 divisors, whose sum is σ = 286366621422. Its totient is φ = 286366621420.

The previous prime is 286366621361. The next prime is 286366621423. The reversal of 286366621421 is 124126663682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262026253225 + 24340368196 = 511885^2 + 156014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-286366621421 is a prime.

Together with 286366621423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286366621423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143183310710 + 143183310711.

It is an arithmetic number, because the mean of its divisors is an integer number (143183310711).

Almost surely, 2^286366621421 is an apocalyptic number.

It is an amenable number.

286366621421 is a deficient number, since it is larger than the sum of its proper divisors (1).

286366621421 is an equidigital number, since it uses as much as digits as its factorization.

286366621421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 47.

The spelling of 286366621421 in words is "two hundred eighty-six billion, three hundred sixty-six million, six hundred twenty-one thousand, four hundred twenty-one".