2543981323 has 8 divisors (see below), whose sum is σ = 2761246208. Its totient is φ = 2329798464.

The previous prime is 2543981281. The next prime is 2543981329. The reversal of 2543981323 is 3231893452.

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 2543981323 - 2²⁹ = 2007110411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543981329) 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, 768786 + ... + 772087.

It is an arithmetic number, because the mean of its divisors is an integer number (345155776).

Almost surely, 2^2543981323 is an apocalyptic number.

2543981323 is a deficient number, since it is larger than the sum of its proper divisors (217264885).

2543981323 is a wasteful number, since it uses less digits than its factorization.

2543981323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541013.

The product of its digits is 155520, while the sum is 40.

The square root of 2543981323 is about 50437.8957035283. The cubic root of 2543981323 is about 1365.1214985752.

The spelling of 2543981323 in words is "two billion, five hundred forty-three million, nine hundred eighty-one thousand, three hundred twenty-three".