2541781546 has 16 divisors (see below), whose sum is σ = 3903845184. Its totient is φ = 1240835904.

The previous prime is 2541781523. The next prime is 2541781553. The reversal of 2541781546 is 6451871452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68790 + ... + 99073.

It is an arithmetic number, because the mean of its divisors is an integer number (243990324).

Almost surely, 2^2541781546 is an apocalyptic number.

2541781546 is a deficient number, since it is larger than the sum of its proper divisors (1362063638).

2541781546 is a wasteful number, since it uses less digits than its factorization.

2541781546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168045.

The product of its digits is 268800, while the sum is 43.

The square root of 2541781546 is about 50416.0841993902. The cubic root of 2541781546 is about 1364.7279122418.

The spelling of 2541781546 in words is "two billion, five hundred forty-one million, seven hundred eighty-one thousand, five hundred forty-six".