11806884431 has 8 divisors (see below), whose sum is σ = 12157533024. Its totient is φ = 11459220480.

The previous prime is 11806884413. The next prime is 11806884433. The reversal of 11806884431 is 13448860811.

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 11806884431 - 2²² = 11802690127 is a prime.

It is a super-2 number, since 2×11806884431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11806884433) 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, 738131 + ... + 753956.

It is an arithmetic number, because the mean of its divisors is an integer number (1519691628).

Almost surely, 2^11806884431 is an apocalyptic number.

11806884431 is a deficient number, since it is larger than the sum of its proper divisors (350648593).

11806884431 is a wasteful number, since it uses less digits than its factorization.

11806884431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492321.

The product of its (nonzero) digits is 147456, while the sum is 44.

The spelling of 11806884431 in words is "eleven billion, eight hundred six million, eight hundred eighty-four thousand, four hundred thirty-one".