18782305463 has 4 divisors (see below), whose sum is σ = 18930197760. Its totient is φ = 18634413168.

The previous prime is 18782305459. The next prime is 18782305511. The reversal of 18782305463 is 36450328781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18782305463 - 2² = 18782305459 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 (18782305403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73945958 + ... + 73946211.

It is an arithmetic number, because the mean of its divisors is an integer number (4732549440).

Almost surely, 2^18782305463 is an apocalyptic number.

18782305463 is a deficient number, since it is larger than the sum of its proper divisors (147892297).

18782305463 is a wasteful number, since it uses less digits than its factorization.

18782305463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147892296.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 18782305463 in words is "eighteen billion, seven hundred eighty-two million, three hundred five thousand, four hundred sixty-three".