54180394487 has 2 divisors, whose sum is σ = 54180394488. Its totient is φ = 54180394486.

The previous prime is 54180394469. The next prime is 54180394523. The reversal of 54180394487 is 78449308145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54180394487 - 2²⁴ = 54163617271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54180391487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27090197243 + 27090197244.

It is an arithmetic number, because the mean of its divisors is an integer number (27090197244).

Almost surely, 2^54180394487 is an apocalyptic number.

54180394487 is a deficient number, since it is larger than the sum of its proper divisors (1).

54180394487 is an equidigital number, since it uses as much as digits as its factorization.

54180394487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 54180394487 in words is "fifty-four billion, one hundred eighty million, three hundred ninety-four thousand, four hundred eighty-seven".