18463463424 has 216 divisors, whose sum is σ = 62035171380. Its totient is φ = 5275017216.

The previous prime is 18463463423. The next prime is 18463463443. The reversal of 18463463424 is 42436436481.

18463463424 is a `hidden beast` number, since 1 + 8 + 4 + 6 + 3 + 4 + 634 + 2 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 18463463424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18463463423) 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, 892947 + ... + 913389.

Almost surely, 2^18463463424 is an apocalyptic number.

18463463424 is a gapful number since it is divisible by the number (14) 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 18463463424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31017585690).

18463463424 is an abundant number, since it is smaller than the sum of its proper divisors (43571707956).

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

18463463424 is a wasteful number, since it uses less digits than its factorization.

18463463424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20485 (or 20455 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 45.

The spelling of 18463463424 in words is "eighteen billion, four hundred sixty-three million, four hundred sixty-three thousand, four hundred twenty-four".