11475408481 has 4 divisors (see below), whose sum is σ = 11506676992. Its totient is φ = 11444139972.

The previous prime is 11475408457. The next prime is 11475408569. The reversal of 11475408481 is 18480457411.

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.

It is a cyclic number.

It is not a de Polignac number, because 11475408481 - 2⁵ = 11475408449 is a prime.

It is a super-2 number, since 2×11475408481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11475408181) 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, 15633705 + ... + 15634438.

It is an arithmetic number, because the mean of its divisors is an integer number (2876669248).

Almost surely, 2^11475408481 is an apocalyptic number.

It is an amenable number.

11475408481 is a deficient number, since it is larger than the sum of its proper divisors (31268511).

11475408481 is an equidigital number, since it uses as much as digits as its factorization.

11475408481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31268510.

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 11475408481 in words is "eleven billion, four hundred seventy-five million, four hundred eight thousand, four hundred eighty-one".