2042654543 has 4 divisors (see below), whose sum is σ = 2044854240. Its totient is φ = 2040454848.

The previous prime is 2042654513. The next prime is 2042654561. The reversal of 2042654543 is 3454562402.

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 2042654543 - 2¹⁸ = 2042392399 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 (2042654513) 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, 1098455 + ... + 1100312.

It is an arithmetic number, because the mean of its divisors is an integer number (511213560).

Almost surely, 2^2042654543 is an apocalyptic number.

2042654543 is a deficient number, since it is larger than the sum of its proper divisors (2199697).

2042654543 is an equidigital number, since it uses as much as digits as its factorization.

2042654543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199696.

The product of its (nonzero) digits is 115200, while the sum is 35.

The square root of 2042654543 is about 45195.7358939978. The cubic root of 2042654543 is about 1268.8150111947.

The spelling of 2042654543 in words is "two billion, forty-two million, six hundred fifty-four thousand, five hundred forty-three".