18477930467 has 4 divisors (see below), whose sum is σ = 18478241880. Its totient is φ = 18477619056.

The previous prime is 18477930461. The next prime is 18477930481. The reversal of 18477930467 is 76403977481.

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 18477930467 - 2⁴ = 18477930451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18477930461) 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, 36053 + ... + 195590.

It is an arithmetic number, because the mean of its divisors is an integer number (4619560470).

Almost surely, 2^18477930467 is an apocalyptic number.

18477930467 is a deficient number, since it is larger than the sum of its proper divisors (311413).

18477930467 is an equidigital number, since it uses as much as digits as its factorization.

18477930467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311412.

The product of its (nonzero) digits is 7112448, while the sum is 56.

The spelling of 18477930467 in words is "eighteen billion, four hundred seventy-seven million, nine hundred thirty thousand, four hundred sixty-seven".