2543345451 has 48 divisors (see below), whose sum is σ = 3937849344. Its totient is φ = 1578088512.

The previous prime is 2543345449. The next prime is 2543345461. The reversal of 2543345451 is 1545433452.

It is not a de Polignac number, because 2543345451 - 2¹ = 2543345449 is a prime.

Its product of digits (144000) is a multiple of the sum of its prime factors (1600).

It is not an unprimeable number, because it can be changed into a prime (2543345461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1915950 + ... + 1917276.

It is an arithmetic number, because the mean of its divisors is an integer number (82038528).

Almost surely, 2^2543345451 is an apocalyptic number.

2543345451 is a deficient number, since it is larger than the sum of its proper divisors (1394503893).

2543345451 is a wasteful number, since it uses less digits than its factorization.

2543345451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1597 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 2543345451 is about 50431.5917952230. The cubic root of 2543345451 is about 1365.0077510327.

The spelling of 2543345451 in words is "two billion, five hundred forty-three million, three hundred forty-five thousand, four hundred fifty-one".