11944093709 has 4 divisors (see below), whose sum is σ = 12572730240. Its totient is φ = 11315457180.

The previous prime is 11944093697. The next prime is 11944093723. The reversal of 11944093709 is 90739044911.

11944093709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 90739044911 = 89113 ⋅1018247.

It is a cyclic number.

It is not a de Polignac number, because 11944093709 - 2²⁴ = 11927316493 is a prime.

It is a super-2 number, since 2×11944093709² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11944093769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314318237 + ... + 314318274.

It is an arithmetic number, because the mean of its divisors is an integer number (3143182560).

Almost surely, 2^11944093709 is an apocalyptic number.

11944093709 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11944093709 is a deficient number, since it is larger than the sum of its proper divisors (628636531).

11944093709 is an equidigital number, since it uses as much as digits as its factorization.

11944093709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628636530.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 11944093709 in words is "eleven billion, nine hundred forty-four million, ninety-three thousand, seven hundred nine".