286661140815977 has 2 divisors, whose sum is σ = 286661140815978. Its totient is φ = 286661140815976.

The previous prime is 286661140815967. The next prime is 286661140816009. The reversal of 286661140815977 is 779518041166682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266273893045801 + 20387247770176 = 16317901^2 + 4515224^2 .

It is a cyclic number.

It is not a de Polignac number, because 286661140815977 - 2⁶ = 286661140815913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 286661140815977.

It is not a weakly prime, because it can be changed into another prime (286661140815937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143330570407988 + 143330570407989.

It is an arithmetic number, because the mean of its divisors is an integer number (143330570407989).

Almost surely, 2^{286661140815977} is an apocalyptic number.

It is an amenable number.

286661140815977 is a deficient number, since it is larger than the sum of its proper divisors (1).

286661140815977 is an equidigital number, since it uses as much as digits as its factorization.

286661140815977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243855360, while the sum is 71.

The spelling of 286661140815977 in words is "two hundred eighty-six trillion, six hundred sixty-one billion, one hundred forty million, eight hundred fifteen thousand, nine hundred seventy-seven".