10787266689 has 4 divisors (see below), whose sum is σ = 14383022256. Its totient is φ = 7191511124.

The previous prime is 10787266603. The next prime is 10787266741. The reversal of 10787266689 is 98666278701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98666278701 = 3 ⋅32888759567.

It is a cyclic number.

It is not a de Polignac number, because 10787266689 - 2⁸ = 10787266433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10787266489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1797877779 + ... + 1797877784.

It is an arithmetic number, because the mean of its divisors is an integer number (3595755564).

Almost surely, 2^10787266689 is an apocalyptic number.

It is an amenable number.

10787266689 is a deficient number, since it is larger than the sum of its proper divisors (3595755567).

10787266689 is an equidigital number, since it uses as much as digits as its factorization.

10787266689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595755566.

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 10787266689 in words is "ten billion, seven hundred eighty-seven million, two hundred sixty-six thousand, six hundred eighty-nine".