10889270309 has 4 divisors (see below), whose sum is σ = 10889480640. Its totient is φ = 10889059980.

The previous prime is 10889270303. The next prime is 10889270377. The reversal of 10889270309 is 90307298801.

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.

It is a cyclic number.

It is not a de Polignac number, because 10889270309 - 2²⁸ = 10620834853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10889270303) 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, 33002 + ... + 151220.

It is an arithmetic number, because the mean of its divisors is an integer number (2722370160).

Almost surely, 2^10889270309 is an apocalyptic number.

It is an amenable number.

10889270309 is a deficient number, since it is larger than the sum of its proper divisors (210331).

10889270309 is an equidigital number, since it uses as much as digits as its factorization.

10889270309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210330.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 10889270309 in words is "ten billion, eight hundred eighty-nine million, two hundred seventy thousand, three hundred nine".