1113788915609 has 4 divisors (see below), whose sum is σ = 1113857401104. Its totient is φ = 1113720430116.

The previous prime is 1113788915593. The next prime is 1113788915627. The reversal of 1113788915609 is 9065198873111.

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 1113788915609 - 2⁴ = 1113788915593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113788915689) 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, 34218347 + ... + 34250880.

It is an arithmetic number, because the mean of its divisors is an integer number (278464350276).

Almost surely, 2^{1113788915609} is an apocalyptic number.

It is an amenable number.

1113788915609 is a deficient number, since it is larger than the sum of its proper divisors (68485495).

1113788915609 is an equidigital number, since it uses as much as digits as its factorization.

1113788915609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68485494.

The product of its (nonzero) digits is 3265920, while the sum is 59.

The spelling of 1113788915609 in words is "one trillion, one hundred thirteen billion, seven hundred eighty-eight million, nine hundred fifteen thousand, six hundred nine".