11936770609 has 4 divisors (see below), whose sum is σ = 12638933604. Its totient is φ = 11234607616.

The previous prime is 11936770597. The next prime is 11936770619. The reversal of 11936770609 is 90607763911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6194162209 + 5742608400 = 78703^2 + 75780^2 .

It is a cyclic number.

It is not a de Polignac number, because 11936770609 - 2²⁹ = 11399899697 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11936770619) 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, 351081472 + ... + 351081505.

It is an arithmetic number, because the mean of its divisors is an integer number (3159733401).

Almost surely, 2^11936770609 is an apocalyptic number.

It is an amenable number.

11936770609 is a deficient number, since it is larger than the sum of its proper divisors (702162995).

11936770609 is an equidigital number, since it uses as much as digits as its factorization.

11936770609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702162994.

The product of its (nonzero) digits is 428652, while the sum is 49.

The spelling of 11936770609 in words is "eleven billion, nine hundred thirty-six million, seven hundred seventy thousand, six hundred nine".