54287986591 has 2 divisors, whose sum is σ = 54287986592. Its totient is φ = 54287986590.

The previous prime is 54287986579. The next prime is 54287986601. The reversal of 54287986591 is 19568978245.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54287986591 - 2²⁹ = 53751115679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54287986891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27143993295 + 27143993296.

It is an arithmetic number, because the mean of its divisors is an integer number (27143993296).

Almost surely, 2^54287986591 is an apocalyptic number.

54287986591 is a deficient number, since it is larger than the sum of its proper divisors (1).

54287986591 is an equidigital number, since it uses as much as digits as its factorization.

54287986591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43545600, while the sum is 64.

The spelling of 54287986591 in words is "fifty-four billion, two hundred eighty-seven million, nine hundred eighty-six thousand, five hundred ninety-one".