2543470871 has 4 divisors (see below), whose sum is σ = 2543571744. Its totient is φ = 2543370000.
The previous prime is 2543470849. The next prime is 2543470883. The reversal of 2543470871 is 1780743452.
2543470871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 2543470871 - 230 = 1469729047 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2543473871) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24371 + ... + 75371.
It is an arithmetic number, because the mean of its divisors is an integer number (635892936).
Almost surely, 22543470871 is an apocalyptic number.
2543470871 is a deficient number, since it is larger than the sum of its proper divisors (100873).
2543470871 is an equidigital number, since it uses as much as digits as its factorization.
2543470871 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 100872.
The product of its (nonzero) digits is 188160, while the sum is 41.
The square root of 2543470871 is about 50432.8352464939. The cubic root of 2543470871 is about 1365.0301882074.
The spelling of 2543470871 in words is "two billion, five hundred forty-three million, four hundred seventy thousand, eight hundred seventy-one".
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