2543686424087 has 4 divisors (see below), whose sum is σ = 2625740824896. Its totient is φ = 2461632023280.

The previous prime is 2543686424021. The next prime is 2543686424113. The reversal of 2543686424087 is 7804246863452.

2543686424087 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2543686424087 - 2²⁴ = 2543669646871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543686424987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41027200358 + ... + 41027200419.

It is an arithmetic number, because the mean of its divisors is an integer number (656435206224).

Almost surely, 2^{2543686424087} is an apocalyptic number.

2543686424087 is a deficient number, since it is larger than the sum of its proper divisors (82054400809).

2543686424087 is an equidigital number, since it uses as much as digits as its factorization.

2543686424087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82054400808.

The product of its (nonzero) digits is 61931520, while the sum is 59.

The spelling of 2543686424087 in words is "two trillion, five hundred forty-three billion, six hundred eighty-six million, four hundred twenty-four thousand, eighty-seven".