11882755309 has 4 divisors (see below), whose sum is σ = 11884584060. Its totient is φ = 11880926560.

The previous prime is 11882755303. The next prime is 11882755333. The reversal of 11882755309 is 90355728811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90355728811 = 293 ⋅308381327.

It can be written as a sum of positive squares in 2 ways, for example, as 5859443209 + 6023312100 = 76547^2 + 77610^2 .

It is a cyclic number.

It is not a de Polignac number, because 11882755309 - 2³ = 11882755301 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 (11882755301) 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, 904594 + ... + 917635.

It is an arithmetic number, because the mean of its divisors is an integer number (2971146015).

Almost surely, 2^11882755309 is an apocalyptic number.

It is an amenable number.

11882755309 is a deficient number, since it is larger than the sum of its proper divisors (1828751).

11882755309 is an equidigital number, since it uses as much as digits as its factorization.

11882755309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828750.

The product of its (nonzero) digits is 604800, while the sum is 49.

The spelling of 11882755309 in words is "eleven billion, eight hundred eighty-two million, seven hundred fifty-five thousand, three hundred nine".