54686546591 has 2 divisors, whose sum is σ = 54686546592. Its totient is φ = 54686546590.

The previous prime is 54686546587. The next prime is 54686546659. The reversal of 54686546591 is 19564568645.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54686546591 - 2² = 54686546587 is a prime.

It is a super-3 number, since 3×54686546591³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 54686546591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54686546501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27343273295 + 27343273296.

It is an arithmetic number, because the mean of its divisors is an integer number (27343273296).

Almost surely, 2^54686546591 is an apocalyptic number.

54686546591 is a deficient number, since it is larger than the sum of its proper divisors (1).

54686546591 is an equidigital number, since it uses as much as digits as its factorization.

54686546591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104000, while the sum is 59.

The spelling of 54686546591 in words is "fifty-four billion, six hundred eighty-six million, five hundred forty-six thousand, five hundred ninety-one".