7420686089 has 2 divisors, whose sum is σ = 7420686090. Its totient is φ = 7420686088.

The previous prime is 7420686067. The next prime is 7420686127. The reversal of 7420686089 is 9806860247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6829369600 + 591316489 = 82640^2 + 24317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7420686089 is a prime.

It is not a weakly prime, because it can be changed into another prime (7420680089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710343044 + 3710343045.

It is an arithmetic number, because the mean of its divisors is an integer number (3710343045).

Almost surely, 2^7420686089 is an apocalyptic number.

It is an amenable number.

7420686089 is a deficient number, since it is larger than the sum of its proper divisors (1).

7420686089 is an equidigital number, since it uses as much as digits as its factorization.

7420686089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 7420686089 is about 86143.4042106533. The cubic root of 7420686089 is about 1950.5092764933.

The spelling of 7420686089 in words is "seven billion, four hundred twenty million, six hundred eighty-six thousand, eighty-nine".