12017858773 has 4 divisors (see below), whose sum is σ = 12724791660. Its totient is φ = 11310925888.

The previous prime is 12017858761. The next prime is 12017858813. The reversal of 12017858773 is 37785871021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11122233444 + 895625329 = 105462^2 + 29927^2 .

It is a cyclic number.

It is not a de Polignac number, because 12017858773 - 2⁹ = 12017858261 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 (12012858773) 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, 353466418 + ... + 353466451.

It is an arithmetic number, because the mean of its divisors is an integer number (3181197915).

Almost surely, 2^12017858773 is an apocalyptic number.

It is an amenable number.

12017858773 is a deficient number, since it is larger than the sum of its proper divisors (706932887).

12017858773 is an equidigital number, since it uses as much as digits as its factorization.

12017858773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706932886.

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 12017858773 in words is "twelve billion, seventeen million, eight hundred fifty-eight thousand, seven hundred seventy-three".