11813606481 has 8 divisors (see below), whose sum is σ = 15753127104. Its totient is φ = 7874911760.

The previous prime is 11813606479. The next prime is 11813606509. The reversal of 11813606481 is 18460631811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11813606481 - 2¹ = 11813606479 is a prime.

It is a super-2 number, since 2×11813606481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11813626481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172290 + ... + 230891.

It is an arithmetic number, because the mean of its divisors is an integer number (1969140888).

Almost surely, 2^11813606481 is an apocalyptic number.

It is an amenable number.

11813606481 is a deficient number, since it is larger than the sum of its proper divisors (3939520623).

11813606481 is an equidigital number, since it uses as much as digits as its factorization.

11813606481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412951.

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 11813606481 in words is "eleven billion, eight hundred thirteen million, six hundred six thousand, four hundred eighty-one".