11409420215 has 4 divisors (see below), whose sum is σ = 13691304264. Its totient is φ = 9127536168.

The previous prime is 11409420193. The next prime is 11409420259. The reversal of 11409420215 is 51202490411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11409420215 - 2¹⁰ = 11409419191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140942017 + ... + 1140942026.

It is an arithmetic number, because the mean of its divisors is an integer number (3422826066).

Almost surely, 2^11409420215 is an apocalyptic number.

11409420215 is a deficient number, since it is larger than the sum of its proper divisors (2281884049).

11409420215 is an equidigital number, since it uses as much as digits as its factorization.

11409420215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281884048.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 11409420215 in words is "eleven billion, four hundred nine million, four hundred twenty thousand, two hundred fifteen".