18477684107 has 2 divisors, whose sum is σ = 18477684108. Its totient is φ = 18477684106.

The previous prime is 18477684101. The next prime is 18477684131. The reversal of 18477684107 is 70148677481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18477684107 - 2¹⁶ = 18477618571 is a prime.

It is not a weakly prime, because it can be changed into another prime (18477684101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9238842053 + 9238842054.

It is an arithmetic number, because the mean of its divisors is an integer number (9238842054).

Almost surely, 2^18477684107 is an apocalyptic number.

18477684107 is a deficient number, since it is larger than the sum of its proper divisors (1).

18477684107 is an equidigital number, since it uses as much as digits as its factorization.

18477684107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2107392, while the sum is 53.

The spelling of 18477684107 in words is "eighteen billion, four hundred seventy-seven million, six hundred eighty-four thousand, one hundred seven".