18463225536 has 196 divisors, whose sum is σ = 62780328592. Its totient is φ = 5275113984.

The previous prime is 18463225523. The next prime is 18463225537. The reversal of 18463225536 is 63552236481.

18463225536 is a `hidden beast` number, since 1 + 8 + 4 + 632 + 2 + 5 + 5 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 18463225491 and 18463225500.

It is not an unprimeable number, because it can be changed into a prime (18463225537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 298326 + ... + 354858.

Almost surely, 2^18463225536 is an apocalyptic number.

18463225536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18463225536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31390164296).

18463225536 is an abundant number, since it is smaller than the sum of its proper divisors (44317103056).

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

18463225536 is an frugal number, since it uses more digits than its factorization.

18463225536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56570 (or 56545 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 18463225536 in words is "eighteen billion, four hundred sixty-three million, two hundred twenty-five thousand, five hundred thirty-six".