12404550511 has 4 divisors (see below), whose sum is σ = 12404980224. Its totient is φ = 12404120800.

The previous prime is 12404550503. The next prime is 12404550523. The reversal of 12404550511 is 11505540421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11505540421 = 19 ⋅605554759.

It is a cyclic number.

It is not a de Polignac number, because 12404550511 - 2³ = 12404550503 is a prime.

It is a super-2 number, since 2×12404550511² (a number of 21 digits) contains 22 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 12404550511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404550541) 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, 168175 + ... + 230416.

It is an arithmetic number, because the mean of its divisors is an integer number (3101245056).

Almost surely, 2^12404550511 is an apocalyptic number.

12404550511 is a deficient number, since it is larger than the sum of its proper divisors (429713).

12404550511 is an equidigital number, since it uses as much as digits as its factorization.

12404550511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429712.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 12404550511 in words is "twelve billion, four hundred four million, five hundred fifty thousand, five hundred eleven".