18353746576 has 45 divisors (see below), whose sum is σ = 39099732483. Its totient is φ = 8339902560.

The previous prime is 18353746573. The next prime is 18353746589. The reversal of 18353746576 is 67564735381.

It is a happy number.

The square root of 18353746576 is 135476.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18353746573) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5959405 + ... + 5962483.

Almost surely, 2^18353746576 is an apocalyptic number.

18353746576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18353746576 is the 135476-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18353746576

18353746576 is an abundant number, since it is smaller than the sum of its proper divisors (20745985907).

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

18353746576 is an frugal number, since it uses more digits than its factorization.

18353746576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188 (or 3092 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 55.

The spelling of 18353746576 in words is "eighteen billion, three hundred fifty-three million, seven hundred forty-six thousand, five hundred seventy-six".