7286685409 has 2 divisors, whose sum is σ = 7286685410. Its totient is φ = 7286685408.

The previous prime is 7286685347. The next prime is 7286685451. The reversal of 7286685409 is 9045866827.

7286685409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5851791009 + 1434894400 = 76497^2 + 37880^2 .

It is a cyclic number.

It is not a de Polignac number, because 7286685409 - 2²¹ = 7284588257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7286685409.

It is not a weakly prime, because it can be changed into another prime (7286685479) by changing a digit.

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 as a sum of consecutive naturals, namely, 3643342704 + 3643342705.

It is an arithmetic number, because the mean of its divisors is an integer number (3643342705).

Almost surely, 2^7286685409 is an apocalyptic number.

It is an amenable number.

7286685409 is a deficient number, since it is larger than the sum of its proper divisors (1).

7286685409 is an equidigital number, since it uses as much as digits as its factorization.

7286685409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The square root of 7286685409 is about 85362.0841416141. The cubic root of 7286685409 is about 1938.6973052921.

The spelling of 7286685409 in words is "seven billion, two hundred eighty-six million, six hundred eighty-five thousand, four hundred nine".