18722168476 has 48 divisors (see below), whose sum is σ = 37865076480. Its totient is φ = 8005195520.

The previous prime is 18722168473. The next prime is 18722168483. The reversal of 18722168476 is 67486122781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18722168473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1672185 + ... + 1683343.

It is an arithmetic number, because the mean of its divisors is an integer number (788855760).

Almost surely, 2^18722168476 is an apocalyptic number.

It is an amenable number.

18722168476 is an abundant number, since it is smaller than the sum of its proper divisors (19142908004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18722168476 is a wasteful number, since it uses less digits than its factorization.

18722168476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13434 (or 13432 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 52.

The spelling of 18722168476 in words is "eighteen billion, seven hundred twenty-two million, one hundred sixty-eight thousand, four hundred seventy-six".