54188481187 has 2 divisors, whose sum is σ = 54188481188. Its totient is φ = 54188481186.

The previous prime is 54188481181. The next prime is 54188481199. The reversal of 54188481187 is 78118488145.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54188481187 - 2⁷ = 54188481059 is a prime.

It is not a weakly prime, because it can be changed into another prime (54188481181) 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 as a sum of consecutive naturals, namely, 27094240593 + 27094240594.

It is an arithmetic number, because the mean of its divisors is an integer number (27094240594).

Almost surely, 2^54188481187 is an apocalyptic number.

54188481187 is a deficient number, since it is larger than the sum of its proper divisors (1).

54188481187 is an equidigital number, since it uses as much as digits as its factorization.

54188481187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2293760, while the sum is 55.

The spelling of 54188481187 in words is "fifty-four billion, one hundred eighty-eight million, four hundred eighty-one thousand, one hundred eighty-seven".