10987565789 has 2 divisors, whose sum is σ = 10987565790. Its totient is φ = 10987565788.

The previous prime is 10987565767. The next prime is 10987565833. The reversal of 10987565789 is 98756578901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9117003289 + 1870562500 = 95483^2 + 43250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10987565789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10987565759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5493782894 + 5493782895.

It is an arithmetic number, because the mean of its divisors is an integer number (5493782895).

Almost surely, 2^10987565789 is an apocalyptic number.

It is an amenable number.

10987565789 is a deficient number, since it is larger than the sum of its proper divisors (1).

10987565789 is an equidigital number, since it uses as much as digits as its factorization.

10987565789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38102400, while the sum is 65.

The spelling of 10987565789 in words is "ten billion, nine hundred eighty-seven million, five hundred sixty-five thousand, seven hundred eighty-nine".