2861382543 has 8 divisors (see below), whose sum is σ = 3815956656. Its totient is φ = 1907198400.

The previous prime is 2861382521. The next prime is 2861382581. The reversal of 2861382543 is 3452831682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2861382543 - 2⁶ = 2861382479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2861382495 and 2861382504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861382943) 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, 79918 + ... + 110043.

It is an arithmetic number, because the mean of its divisors is an integer number (476994582).

Almost surely, 2^2861382543 is an apocalyptic number.

2861382543 is a deficient number, since it is larger than the sum of its proper divisors (954574113).

2861382543 is a wasteful number, since it uses less digits than its factorization.

2861382543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194985.

The product of its digits is 276480, while the sum is 42.

The square root of 2861382543 is about 53491.8923108914. The cubic root of 2861382543 is about 1419.6849368782.

It can be divided in two parts, 28613 and 82543, that added together give a triangular number (111156 = T₄₇₁).

The spelling of 2861382543 in words is "two billion, eight hundred sixty-one million, three hundred eighty-two thousand, five hundred forty-three".