2678453543 has 8 divisors (see below), whose sum is σ = 2771647200. Its totient is φ = 2585315488.

The previous prime is 2678453539. The next prime is 2678453549. The reversal of 2678453543 is 3453548762.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2678453543 - 2² = 2678453539 is a prime.

It is a super-2 number, since 2×2678453543² = 14348226764018505698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678453549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100073 + ... + 123981.

It is an arithmetic number, because the mean of its divisors is an integer number (346455900).

Almost surely, 2^2678453543 is an apocalyptic number.

2678453543 is a deficient number, since it is larger than the sum of its proper divisors (93193657).

2678453543 is a wasteful number, since it uses less digits than its factorization.

2678453543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27801.

The product of its digits is 2419200, while the sum is 47.

The square root of 2678453543 is about 51753.7780553266. The cubic root of 2678453543 is about 1388.7626866892.

The spelling of 2678453543 in words is "two billion, six hundred seventy-eight million, four hundred fifty-three thousand, five hundred forty-three".