18303406463 has 8 divisors (see below), whose sum is σ = 19757800800. Its totient is φ = 16903895008.

The previous prime is 18303406453. The next prime is 18303406487. The reversal of 18303406463 is 36460430381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18303406463 - 2⁶ = 18303406399 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 (18303406453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13720028 + ... + 13721361.

It is an arithmetic number, because the mean of its divisors is an integer number (2469725100).

Almost surely, 2^18303406463 is an apocalyptic number.

18303406463 is a deficient number, since it is larger than the sum of its proper divisors (1454394337).

18303406463 is a wasteful number, since it uses less digits than its factorization.

18303406463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27441441.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 18303406463 in words is "eighteen billion, three hundred three million, four hundred six thousand, four hundred sixty-three".