2544743091 has 16 divisors (see below), whose sum is σ = 3743038080. Its totient is φ = 1524937920.

The previous prime is 2544743087. The next prime is 2544743099. The reversal of 2544743091 is 1903474452.

It is not a de Polignac number, because 2544743091 - 2² = 2544743087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2544743099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430285 + ... + 436158.

It is an arithmetic number, because the mean of its divisors is an integer number (233939880).

Almost surely, 2^2544743091 is an apocalyptic number.

2544743091 is a deficient number, since it is larger than the sum of its proper divisors (1198294989).

2544743091 is a wasteful number, since it uses less digits than its factorization.

2544743091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866546.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 2544743091 is about 50445.4466825302. The cubic root of 2544743091 is about 1365.2577419883.

The spelling of 2544743091 in words is "two billion, five hundred forty-four million, seven hundred forty-three thousand, ninety-one".