11818063445 has 18 divisors (see below), whose sum is σ = 14436086886. Its totient is φ = 9287791680.

The previous prime is 11818063351. The next prime is 11818063447. The reversal of 11818063445 is 54436081811.

It can be written as a sum of positive squares in 9 ways, for example, as 9220224484 + 2597838961 = 96022^2 + 50969^2 .

It is not a de Polignac number, because 11818063445 - 2¹⁴ = 11818047061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11818063447) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14827787 + ... + 14828583.

It is an arithmetic number, because the mean of its divisors is an integer number (802004827).

Almost surely, 2^11818063445 is an apocalyptic number.

It is an amenable number.

11818063445 is a deficient number, since it is larger than the sum of its proper divisors (2618023441).

11818063445 is an frugal number, since it uses more digits than its factorization.

11818063445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 11818063445 in words is "eleven billion, eight hundred eighteen million, sixty-three thousand, four hundred forty-five".