10987295965609 has 2 divisors, whose sum is σ = 10987295965610. Its totient is φ = 10987295965608.

The previous prime is 10987295965577. The next prime is 10987295965661. The reversal of 10987295965609 is 90656959278901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10847010510400 + 140285455209 = 3293480^2 + 374547^2 .

It is a cyclic number.

It is not a de Polignac number, because 10987295965609 - 2⁵ = 10987295965577 is a prime.

It is not a weakly prime, because it can be changed into another prime (10987295966609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5493647982804 + 5493647982805.

It is an arithmetic number, because the mean of its divisors is an integer number (5493647982805).

Almost surely, 2^{10987295965609} is an apocalyptic number.

It is an amenable number.

10987295965609 is a deficient number, since it is larger than the sum of its proper divisors (1).

10987295965609 is an equidigital number, since it uses as much as digits as its factorization.

10987295965609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661348800, while the sum is 76.

The spelling of 10987295965609 in words is "ten trillion, nine hundred eighty-seven billion, two hundred ninety-five million, nine hundred sixty-five thousand, six hundred nine".