18427406907 has 16 divisors (see below), whose sum is σ = 30239847680. Its totient is φ = 9719950752.

The previous prime is 18427406903. The next prime is 18427406917. The reversal of 18427406907 is 70960472481.

It is not a de Polignac number, because 18427406907 - 2² = 18427406903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18427406903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33749557 + ... + 33750102.

It is an arithmetic number, because the mean of its divisors is an integer number (1889990480).

Almost surely, 2^18427406907 is an apocalyptic number.

18427406907 is a deficient number, since it is larger than the sum of its proper divisors (11812440773).

18427406907 is a wasteful number, since it uses less digits than its factorization.

18427406907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67499682.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 18427406907 in words is "eighteen billion, four hundred twenty-seven million, four hundred six thousand, nine hundred seven".