11722094009 has 4 divisors (see below), whose sum is σ = 11897050704. Its totient is φ = 11547137316.

The previous prime is 11722093979. The next prime is 11722094017. The reversal of 11722094009 is 90049022711.

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: 90049022711 = 1693 ⋅53189027.

It is a cyclic number.

It is not a de Polignac number, because 11722094009 - 2⁸ = 11722093753 is a prime.

It is a super-3 number, since 3×11722094009³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11722094009.

It is not an unprimeable number, because it can be changed into a prime (11722094309) 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, 87478247 + ... + 87478380.

It is an arithmetic number, because the mean of its divisors is an integer number (2974262676).

Almost surely, 2^11722094009 is an apocalyptic number.

It is an amenable number.

11722094009 is a deficient number, since it is larger than the sum of its proper divisors (174956695).

11722094009 is an equidigital number, since it uses as much as digits as its factorization.

11722094009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174956694.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 11722094009 in words is "eleven billion, seven hundred twenty-two million, ninety-four thousand, nine".